Discussion:
[xcat-user] Bcast address 0.0.0.0 Statelite deployment
Gilad Berman
2017-05-19 20:04:07 UTC
Permalink
All,

I am assuming many linux experts on this list, so since I am not sure this is purely xCAT issue, any hints are more than welcome 😊

In our statelite deployment the boot interface comes up with broadcast address of 0.0.0.0 –
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 6C:AE:8B:08:8E:03
inet addr:10.10.101.51 Bcast:0.0.0.0 Mask:255.255.255.0

.

The broadcast address can be setup easily with ifconfig eth0 broadcast. Eth1 boots with the right bcast address.

I wonder what could cause this issue, when seems there is no limitation on setting it.

OS is SLES12.2 and deployment method is statelite (statefull works as expected).

THX in advance!

[Loading Image...]

Gilad Berman
HPC Architect
Lenovo EMEA

[Phone]+972-52-2554262
[Email]***@lenovo.com<mailto:***@lenovo.com>



Lenovo.com <http://www.lenovo.com/>
Twitter<http://twitter.com/lenovo> | Facebook<http://www.facebook.com/lenovo> | Instagram<https://instagram.com/lenovo> | Blogs<http://blog.lenovo.com/> | Forums<http://forums.lenovo.com/>


[DCG-Hardware]
Yuan Y Bai
2017-05-22 02:53:32 UTC
Permalink
Hi Gilad,

Thanks your information, let me try to reproduce it in my environment.


Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian
District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193



From: Gilad Berman <***@lenovo.com>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Date: 05/20/2017 04:06 AM
Subject: [xcat-user] Bcast address 0.0.0.0 Statelite deployment



All,

I am assuming many linux experts on this list, so since I am not sure this
is purely xCAT issue, any hints are more than welcome 😊

In our statelite deployment the boot interface comes up with broadcast
address of 0.0.0.0 –
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 6C:AE:8B:08:8E:03
inet addr:10.10.101.51 Bcast:0.0.0.0 Mask:255.255.255.0

.

The broadcast address can be setup easily with ifconfig eth0 broadcast.
Eth1 boots with the right bcast address.

I wonder what could cause this issue, when seems there is no limitation on
setting it.

OS is SLES12.2 and deployment method is statelite (statefull works as
expected).

THX in advance!




http://lenovocentral.lenovo.com/marketing/branding/email_signature/images/gradient.gif




Gilad Berman DCG-Hardware
HPC Architect
Lenovo EMEA
Phone+972-52-2554262
***@lenovo.com



Lenovo.com
Twitter | Facebook | Instagram | Blogs | Forums






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Yuan Y Bai
2017-05-22 06:16:58 UTC
Permalink
Hi Gilad,

I provisioned sles12.2 statelite using xCAT, I cannot reproduce this Bcase
adress 0.0.0.0 for install nic through provisioning.

I have following questions:

1, Is eth0 your install nic? install nic is configured by dhcp in xCAT, if
eth0 is install nic, the bcast is not configured by xCAT directly, it
should be calculated.

2, Is eth0 configured by scripts from xCAT? for example, do you use
confignics or confignetwork scipts or etc to configure eth0?
If you using scripts in xCAT, could you tell me which scripts? I can
look into it.

3, If you using other scripts to configure eth0, the following command may
cause the bcast address as 0.0.0.0:

/sbin/ip link set eth0 down
/sbin/ip addr add 10.10.101.51/24 dev eth1
/sbin/ip link set eth0 up

You should use:
/sbin/ip addr add 10.10.101.51/24 broadcast 10.10.101.255 dev eth1

Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian
District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193



From: "Yuan Y Bai" <***@cn.ibm.com>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Date: 05/22/2017 10:55 AM
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment



Hi Gilad,

Thanks your information, let me try to reproduce it in my environment.


Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

Inactive hide details for Gilad Berman ---05/20/2017 04:06:14 AM---All, I
am assuming many linux experts on this list, so sinceGilad Berman
---05/20/2017 04:06:14 AM---All, I am assuming many linux experts on this
list, so since I am not sure this is purely xCAT issue

From: Gilad Berman <***@lenovo.com>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Date: 05/20/2017 04:06 AM
Subject: [xcat-user] Bcast address 0.0.0.0 Statelite deployment



All,

I am assuming many linux experts on this list, so since I am not sure this
is purely xCAT issue, any hints are more than welcome 😊

In our statelite deployment the boot interface comes up with broadcast
address of 0.0.0.0 –
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 6C:AE:8B:08:8E:03
inet addr:10.10.101.51 Bcast:0.0.0.0 Mask:255.255.255.0

.

The broadcast address can be setup easily with ifconfig eth0 broadcast.
Eth1 boots with the right bcast address.

I wonder what could cause this issue, when seems there is no limitation on
setting it.

OS is SLES12.2 and deployment method is statelite (statefull works as
expected).

THX in advance!



http://lenovocentral.lenovo.com/marketing/branding/email_signature/images/gradient.gif



DCG-Hardware
Gilad Berman
HPC Architect
Lenovo EMEA
Phone+972-52-2554262
***@lenovo.com



Lenovo.com
Twitter | Facebook | Instagram | Blogs | Forums





------------------------------------------------------------------------------

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Yuan Y Bai
2017-05-22 06:20:47 UTC
Permalink
Sorry for mistake of eth1, should eth0 in previous mail.

/sbin/ip addr add 10.10.101.51/24 dev eth0
/sbin/ip link set eth0 up

You should use:
/sbin/ip addr add 10.10.101.51/24 broadcast 10.10.101.255 dev
eth0

Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian
District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193



From: "Yuan Y Bai" <***@cn.ibm.com>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Date: 05/22/2017 02:18 PM
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment



Hi Gilad,

I provisioned sles12.2 statelite using xCAT, I cannot reproduce this Bcase
adress 0.0.0.0 for install nic through provisioning.

I have following questions:

1, Is eth0 your install nic? install nic is configured by dhcp in xCAT, if
eth0 is install nic, the bcast is not configured by xCAT directly, it
should be calculated.

2, Is eth0 configured by scripts from xCAT? for example, do you use
confignics or confignetwork scipts or etc to configure eth0?
If you using scripts in xCAT, could you tell me which scripts? I can look
into it.

3, If you using other scripts to configure eth0, the following command may
cause the bcast address as 0.0.0.0:
/sbin/ip link set eth0 down
/sbin/ip addr add 10.10.101.51/24 dev eth0
/sbin/ip link set eth0 up

You should use:
/sbin/ip addr add 10.10.101.51/24 broadcast 10.10.101.255 dev
eth0



Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

Inactive hide details for "Yuan Y Bai" ---05/22/2017 10:55:37 AM---Hi
Gilad, Thanks your information, let me try to reproduce i"Yuan Y Bai"
---05/22/2017 10:55:37 AM---Hi Gilad, Thanks your information, let me try
to reproduce it in my environment.

From: "Yuan Y Bai" <***@cn.ibm.com>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Date: 05/22/2017 10:55 AM
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment



Hi Gilad,

Thanks your information, let me try to reproduce it in my environment.


Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

Inactive hide details for Gilad Berman ---05/20/2017 04:06:14 AM---All, I
am assuming many linux experts on this list, so sinceGilad Berman
---05/20/2017 04:06:14 AM---All, I am assuming many linux experts on this
list, so since I am not sure this is purely xCAT issue

From: Gilad Berman <***@lenovo.com>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Date: 05/20/2017 04:06 AM
Subject: [xcat-user] Bcast address 0.0.0.0 Statelite deployment



All,

I am assuming many linux experts on this list, so since I am not sure this
is purely xCAT issue, any hints are more than welcome 😊

In our statelite deployment the boot interface comes up with broadcast
address of 0.0.0.0 –
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 6C:AE:8B:08:8E:03
inet addr:10.10.101.51 Bcast:0.0.0.0 Mask:255.255.255.0

.

The broadcast address can be setup easily with ifconfig eth0 broadcast.
Eth1 boots with the right bcast address.

I wonder what could cause this issue, when seems there is no limitation on
setting it.

OS is SLES12.2 and deployment method is statelite (statefull works as
expected).

THX in advance!



http://lenovocentral.lenovo.com/marketing/branding/email_signature/images/gradient.gif



DCG-Hardware
Gilad Berman
HPC Architect
Lenovo EMEA
Phone+972-52-2554262
***@lenovo.com



Lenovo.com
Twitter | Facebook | Instagram | Blogs | Forums





------------------------------------------------------------------------------

Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
xCAT-user mailing list
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https://lists.sourceforge.net/lists/listinfo/xcat-user


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Gilad Berman
2017-05-22 06:35:01 UTC
Permalink
Yuan Bai,

1, Is eth0 your install nic? install nic is configured by dhcp in xCAT, if eth0 is install nic, the bcast is not configured by xCAT directly, it should be calculated.

[gb] Eth0 is the install NIC. On other NICs configured by DHCP (in statefull install for example) I see the right bcast address.
Usually the bcast address is being configured automatically.


2, Is eth0 configured by scripts from xCAT? for example, do you use confignics or confignetwork scipts or etc to configure eth0?
If you using scripts in xCAT, could you tell me which scripts? I can look into it.

[gb] No scripts are used, anyway after boot there is not much can be done to this NIC because no


3, If you using other scripts to configure eth0, the following command may cause the bcast address as 0.0.0.0:
/sbin/ip link set eth0 down
/sbin/ip addr add 10.10.101.51/24 dev eth0
/sbin/ip link set eth0 up

You should use:
/sbin/ip addr add 10.10.101.51/24 broadcast 10.10.101.255 dev eth0

[gb] There is no issue with configuring the address manually after boot (ifconfig or ip), so we have a simple workaround. The reason I am trying to find the root course is because there might be some hidden issue that will hurt something else later. I am basically trying to understand why the bcast address is not being calculated and configured at boot time.
The only time this NIC is being configured is the boot time, after that, it is impossible to bring it down.
Any idea why in the first place there is no bcast? Any DHCP options that prevents it?

THX a lot!!!
[http://lenovocentral.lenovo.com/marketing/branding/email_signature/images/gradient.gif]

Gilad Berman
HPC Architect
Lenovo EMEA

[Phone]+972-52-2554262
[Email]***@lenovo.com<mailto:***@lenovo.com>



Lenovo.com <http://www.lenovo.com/>
Twitter<http://twitter.com/lenovo> | Facebook<http://www.facebook.com/lenovo> | Instagram<https://instagram.com/lenovo> | Blogs<http://blog.lenovo.com/> | Forums<http://forums.lenovo.com/>


[DCG-Hardware]




From: Yuan Y Bai [mailto:***@cn.ibm.com]
Sent: Monday, May 22, 2017 9:21 AM
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment


Sorry for mistake of eth1, should eth0 in previous mail.
/sbin/ip addr add 10.10.101.51/24 dev eth0
/sbin/ip link set eth0 up

You should use:
/sbin/ip addr add 10.10.101.51/24 broadcast 10.10.101.255 dev eth0
Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com<mailto:***@cn.ibm.com>
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

[Inactive hide details for "Yuan Y Bai" ---05/22/2017 02:18:54 PM---Hi Gilad, I provisioned sles12.2 statelite using xCAT, I can]"Yuan Y Bai" ---05/22/2017 02:18:54 PM---Hi Gilad, I provisioned sles12.2 statelite using xCAT, I cannot reproduce this Bcase

From: "Yuan Y Bai" <***@cn.ibm.com<mailto:***@cn.ibm.com>>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net<mailto:xcat-***@lists.sourceforge.net>>
Date: 05/22/2017 02:18 PM
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment
________________________________



Hi Gilad,

I provisioned sles12.2 statelite using xCAT, I cannot reproduce this Bcase adress 0.0.0.0 for install nic through provisioning.

I have following questions:

1, Is eth0 your install nic? install nic is configured by dhcp in xCAT, if eth0 is install nic, the bcast is not configured by xCAT directly, it should be calculated.

2, Is eth0 configured by scripts from xCAT? for example, do you use confignics or confignetwork scipts or etc to configure eth0?
If you using scripts in xCAT, could you tell me which scripts? I can look into it.

3, If you using other scripts to configure eth0, the following command may cause the bcast address as 0.0.0.0:
/sbin/ip link set eth0 down
/sbin/ip addr add 10.10.101.51/24 dev eth0
/sbin/ip link set eth0 up

You should use:
/sbin/ip addr add 10.10.101.51/24 broadcast 10.10.101.255 dev eth0

Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com<mailto:***@cn.ibm.com>
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

[Inactive hide details for "Yuan Y Bai" ---05/22/2017 10:55:37 AM---Hi Gilad, Thanks your information, let me try to reproduce i]"Yuan Y Bai" ---05/22/2017 10:55:37 AM---Hi Gilad, Thanks your information, let me try to reproduce it in my environment.

From: "Yuan Y Bai" <***@cn.ibm.com<mailto:***@cn.ibm.com>>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net<mailto:xcat-***@lists.sourceforge.net>>
Date: 05/22/2017 10:55 AM
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment
________________________________



Hi Gilad,

Thanks your information, let me try to reproduce it in my environment.


Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com<mailto:***@cn.ibm.com>
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

[Inactive hide details for Gilad Berman ---05/20/2017 04:06:14 AM---All, I am assuming many linux experts on this list, so since]Gilad Berman ---05/20/2017 04:06:14 AM---All, I am assuming many linux experts on this list, so since I am not sure this is purely xCAT issue

From: Gilad Berman <***@lenovo.com<mailto:***@lenovo.com>>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net<mailto:xcat-***@lists.sourceforge.net>>
Date: 05/20/2017 04:06 AM
Subject: [xcat-user] Bcast address 0.0.0.0 Statelite deployment
________________________________



All,

I am assuming many linux experts on this list, so since I am not sure this is purely xCAT issue, any hints are more than welcome 😊

In our statelite deployment the boot interface comes up with broadcast address of 0.0.0.0 –
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 6C:AE:8B:08:8E:03
inet addr:10.10.101.51 Bcast:0.0.0.0 Mask:255.255.255.0

.

The broadcast address can be setup easily with ifconfig eth0 broadcast. Eth1 boots with the right bcast address.

I wonder what could cause this issue, when seems there is no limitation on setting it.

OS is SLES12.2 and deployment method is statelite (statefull works as expected).

THX in advance!
[http://lenovocentral.lenovo.com/marketing/branding/email_signature/images/gradient.gif]

Gilad Berman
HPC Architect
Lenovo EMEA

[Phone]+972-52-2554262
[Email]***@lenovo.com<mailto:***@lenovo.com>





Lenovo.com <http://www.lenovo.com/>
Twitter<http://twitter.com/lenovo> | Facebook<http://www.facebook.com/lenovo> | Instagram<https://instagram.com/lenovo> | Blogs<http://blog.lenovo.com/> | Forums<http://forums.lenovo.com/>


[DCG-Hardware]





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Yuan Y Bai
2017-05-23 06:12:31 UTC
Permalink
Hi Gilad,

Since I cannot reproduce this Bcast address 0.0.0.0 during statelite
provision, I think it is not directly caused by xCAT statelite provision.

Could you provide more information about this? So that we can do more
investigation.

Could you give us node definition and ifcfg-eth0 file contents?

Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian
District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193



From: Gilad Berman <***@lenovo.com>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Date: 05/22/2017 02:36 PM
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment



Yuan Bai,

1, Is eth0 your install nic? install nic is configured by dhcp in xCAT, if
eth0 is install nic, the bcast is not configured by xCAT directly, it
should be calculated.

[gb] Eth0 is the install NIC. On other NICs configured by DHCP (in
statefull install for example) I see the right bcast address.
Usually the bcast address is being configured automatically.


2, Is eth0 configured by scripts from xCAT? for example, do you use
confignics or confignetwork scipts or etc to configure eth0?
If you using scripts in xCAT, could you tell me which scripts? I can look
into it.

[gb] No scripts are used, anyway after boot there is not much can be done
to this NIC because no


3, If you using other scripts to configure eth0, the following command may
cause the bcast address as 0.0.0.0:
/sbin/ip link set eth0 down
/sbin/ip addr add 10.10.101.51/24 dev eth0
/sbin/ip link set eth0 up

You should use:
/sbin/ip addr add 10.10.101.51/24 broadcast
10.10.101.255 dev eth0

[gb] There is no issue with configuring the address manually after boot
(ifconfig or ip), so we have a simple workaround. The reason I am trying to
find the root course is because there might be some hidden issue that will
hurt something else later. I am basically trying to understand why the
bcast address is not being calculated and configured at boot time.
The only time this NIC is being configured is the boot time, after that, it
is impossible to bring it down.
Any idea why in the first place there is no bcast? Any DHCP options that
prevents it?

THX a lot!!!



http://lenovocentral.lenovo.com/marketing/branding/email_signature/images/gradient.gif




Gilad Berman DCG-Hardware
HPC Architect
Lenovo EMEA

Phone+972-52-2554262
***@lenovo.com







Lenovo.com
Twitter | Facebook | Instagram | Blogs | Forums







From: Yuan Y Bai [mailto:***@cn.ibm.com]
Sent: Monday, May 22, 2017 9:21 AM
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment



Sorry for mistake of eth1, should eth0 in previous mail.
/sbin/ip addr add 10.10.101.51/24 dev eth0
/sbin/ip link set eth0 up

You should use:
/sbin/ip addr add 10.10.101.51/24 broadcast
10.10.101.255 dev eth0
Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

Inactive hide details for "Yuan Y Bai" ---05/22/2017 02:18:54 PM---Hi
Gilad, I provisioned sles12.2 statelite using xCAT, I can"Yuan Y Bai"
---05/22/2017 02:18:54 PM---Hi Gilad, I provisioned sles12.2 statelite
using xCAT, I cannot reproduce this Bcase

From: "Yuan Y Bai" <***@cn.ibm.com>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Date: 05/22/2017 02:18 PM
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment




Hi Gilad,

I provisioned sles12.2 statelite using xCAT, I cannot reproduce this Bcase
adress 0.0.0.0 for install nic through provisioning.

I have following questions:

1, Is eth0 your install nic? install nic is configured by dhcp in xCAT, if
eth0 is install nic, the bcast is not configured by xCAT directly, it
should be calculated.

2, Is eth0 configured by scripts from xCAT? for example, do you use
confignics or confignetwork scipts or etc to configure eth0?
If you using scripts in xCAT, could you tell me which scripts? I can look
into it.

3, If you using other scripts to configure eth0, the following command may
cause the bcast address as 0.0.0.0:
/sbin/ip link set eth0 down
/sbin/ip addr add 10.10.101.51/24 dev eth0
/sbin/ip link set eth0 up

You should use:
/sbin/ip addr add 10.10.101.51/24 broadcast
10.10.101.255 dev eth0

Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

Inactive hide details for "Yuan Y Bai" ---05/22/2017 10:55:37 AM---Hi
Gilad, Thanks your information, let me try to reproduce i"Yuan Y Bai"
---05/22/2017 10:55:37 AM---Hi Gilad, Thanks your information, let me try
to reproduce it in my environment.

From: "Yuan Y Bai" <***@cn.ibm.com>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Date: 05/22/2017 10:55 AM
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment




Hi Gilad,

Thanks your information, let me try to reproduce it in my environment.


Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

Inactive hide details for Gilad Berman ---05/20/2017 04:06:14 AM---All, I
am assuming many linux experts on this list, so sinceGilad Berman
---05/20/2017 04:06:14 AM---All, I am assuming many linux experts on this
list, so since I am not sure this is purely xCAT issue

From: Gilad Berman <***@lenovo.com>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Date: 05/20/2017 04:06 AM
Subject: [xcat-user] Bcast address 0.0.0.0 Statelite deployment




All,

I am assuming many linux experts on this list, so since I am not sure this
is purely xCAT issue, any hints are more than welcome 😊

In our statelite deployment the boot interface comes up with broadcast
address of 0.0.0.0 –
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 6C:AE:8B:08:8E:03
inet addr:10.10.101.51 Bcast:0.0.0.0 Mask:255.255.255.0

.

The broadcast address can be setup easily with ifconfig eth0 broadcast.
Eth1 boots with the right bcast address.

I wonder what could cause this issue, when seems there is no limitation on
setting it.

OS is SLES12.2 and deployment method is statelite (statefull works as
expected).

THX in advance!



http://lenovocentral.lenovo.com/marketing/branding/email_signature/images/gradient.gif




Gilad Berman DCG-Hardware
HPC Architect
Lenovo EMEA
Phone+972-52-2554262
***@lenovo.com



Lenovo.com
Twitter | Facebook | Instagram | Blogs | Forums







------------------------------------------------------------------------------

Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
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https://lists.sourceforge.net/lists/listinfo/xcat-user


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_______________________________________________
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------------------------------------------------------------------------------

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engaging tech sites, Slashdot.org! http://sdm.link/slashdot
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Gilad Berman
2017-05-23 18:17:26 UTC
Permalink
Yuan Bai,

We do not have ifcfg-eth0 file because this way we can reboot a statelite node with the ‘reboot’ command. If you will have this file, wicked will stuck the shutdown process as soon as it tried to disable this interface.

Maybe this is related to the issue. I will try to check.

THX!

[http://lenovocentral.lenovo.com/marketing/branding/email_signature/images/gradient.gif]

Gilad Berman
HPC Architect
Lenovo EMEA

[Phone]+972-52-2554262
[Email]***@lenovo.com<mailto:***@lenovo.com>



Lenovo.com <http://www.lenovo.com/>
Twitter<http://twitter.com/lenovo> | Facebook<http://www.facebook.com/lenovo> | Instagram<https://instagram.com/lenovo> | Blogs<http://blog.lenovo.com/> | Forums<http://forums.lenovo.com/>


[DCG-Hardware]




From: Yuan Y Bai [mailto:***@cn.ibm.com]
Sent: Tuesday, May 23, 2017 9:13 AM
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net>
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment


Hi Gilad,

Since I cannot reproduce this Bcast address 0.0.0.0 during statelite provision, I think it is not directly caused by xCAT statelite provision.

Could you provide more information about this? So that we can do more investigation.

Could you give us node definition and ifcfg-eth0 file contents?

Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com<mailto:***@cn.ibm.com>
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

[Inactive hide details for Gilad Berman ---05/22/2017 02:36:13 PM---Yuan Bai, 1, Is eth0 your install nic? install nic is config]Gilad Berman ---05/22/2017 02:36:13 PM---Yuan Bai, 1, Is eth0 your install nic? install nic is configured by dhcp in xCAT, if eth0 is install

From: Gilad Berman <***@lenovo.com<mailto:***@lenovo.com>>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net<mailto:xcat-***@lists.sourceforge.net>>
Date: 05/22/2017 02:36 PM
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment

________________________________



Yuan Bai,

1, Is eth0 your install nic? install nic is configured by dhcp in xCAT, if eth0 is install nic, the bcast is not configured by xCAT directly, it should be calculated.

[gb] Eth0 is the install NIC. On other NICs configured by DHCP (in statefull install for example) I see the right bcast address.
Usually the bcast address is being configured automatically.


2, Is eth0 configured by scripts from xCAT? for example, do you use confignics or confignetwork scipts or etc to configure eth0?
If you using scripts in xCAT, could you tell me which scripts? I can look into it.

[gb] No scripts are used, anyway after boot there is not much can be done to this NIC because no


3, If you using other scripts to configure eth0, the following command may cause the bcast address as 0.0.0.0:
/sbin/ip link set eth0 down
/sbin/ip addr add 10.10.101.51/24 dev eth0
/sbin/ip link set eth0 up

You should use:
/sbin/ip addr add 10.10.101.51/24 broadcast 10.10.101.255 dev eth0

[gb] There is no issue with configuring the address manually after boot (ifconfig or ip), so we have a simple workaround. The reason I am trying to find the root course is because there might be some hidden issue that will hurt something else later. I am basically trying to understand why the bcast address is not being calculated and configured at boot time.
The only time this NIC is being configured is the boot time, after that, it is impossible to bring it down.
Any idea why in the first place there is no bcast? Any DHCP options that prevents it?

THX a lot!!!
[http://lenovocentral.lenovo.com/marketing/branding/email_signature/images/gradient.gif]







Gilad Berman
HPC Architect
Lenovo EMEA



[Phone]+972-52-2554262
[Email]***@lenovo.com<mailto:***@lenovo.com>










Lenovo.com <http://www.lenovo.com/>
Twitter<http://twitter.com/lenovo> | Facebook<http://www.facebook.com/lenovo> | Instagram<https://instagram.com/lenovo> | Blogs<http://blog.lenovo.com/> | Forums<http://forums.lenovo.com/>






[DCG-Hardware]













From: Yuan Y Bai [mailto:***@cn.ibm.com]
Sent: Monday, May 22, 2017 9:21 AM
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net<mailto:xcat-***@lists.sourceforge.net>>
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment

Sorry for mistake of eth1, should eth0 in previous mail.
/sbin/ip addr add 10.10.101.51/24 dev eth0
/sbin/ip link set eth0 up

You should use:
/sbin/ip addr add 10.10.101.51/24 broadcast 10.10.101.255 dev eth0
Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com<mailto:***@cn.ibm.com>
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

[Inactive hide details for "Yuan Y Bai" ---05/22/2017 02:18:54 PM---Hi Gilad, I provisioned sles12.2 statelite using xCAT, I can]"Yuan Y Bai" ---05/22/2017 02:18:54 PM---Hi Gilad, I provisioned sles12.2 statelite using xCAT, I cannot reproduce this Bcase

From: "Yuan Y Bai" <***@cn.ibm.com<mailto:***@cn.ibm.com>>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net<mailto:xcat-***@lists.sourceforge.net>>
Date: 05/22/2017 02:18 PM
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment
________________________________




Hi Gilad,

I provisioned sles12.2 statelite using xCAT, I cannot reproduce this Bcase adress 0.0.0.0 for install nic through provisioning.

I have following questions:

1, Is eth0 your install nic? install nic is configured by dhcp in xCAT, if eth0 is install nic, the bcast is not configured by xCAT directly, it should be calculated.

2, Is eth0 configured by scripts from xCAT? for example, do you use confignics or confignetwork scipts or etc to configure eth0?
If you using scripts in xCAT, could you tell me which scripts? I can look into it.

3, If you using other scripts to configure eth0, the following command may cause the bcast address as 0.0.0.0:
/sbin/ip link set eth0 down
/sbin/ip addr add 10.10.101.51/24 dev eth0
/sbin/ip link set eth0 up

You should use:
/sbin/ip addr add 10.10.101.51/24 broadcast 10.10.101.255 dev eth0

Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com<mailto:***@cn.ibm.com>
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

[Inactive hide details for "Yuan Y Bai" ---05/22/2017 10:55:37 AM---Hi Gilad, Thanks your information, let me try to reproduce i]"Yuan Y Bai" ---05/22/2017 10:55:37 AM---Hi Gilad, Thanks your information, let me try to reproduce it in my environment.

From: "Yuan Y Bai" <***@cn.ibm.com<mailto:***@cn.ibm.com>>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net<mailto:xcat-***@lists.sourceforge.net>>
Date: 05/22/2017 10:55 AM
Subject: Re: [xcat-user] Bcast address 0.0.0.0 Statelite deployment
________________________________




Hi Gilad,

Thanks your information, let me try to reproduce it in my environment.


Best Regards
--------------------------------------------------
Yuan Bai (癜媛)

CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: ***@cn.ibm.com<mailto:***@cn.ibm.com>
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193

IBM环宇倧厊
北京垂海淀区䞜北旺西路8号䞭关村蜯件园28号楌
邮猖:100193

[Inactive hide details for Gilad Berman ---05/20/2017 04:06:14 AM---All, I am assuming many linux experts on this list, so since]Gilad Berman ---05/20/2017 04:06:14 AM---All, I am assuming many linux experts on this list, so since I am not sure this is purely xCAT issue

From: Gilad Berman <***@lenovo.com<mailto:***@lenovo.com>>
To: xCAT Users Mailing list <xcat-***@lists.sourceforge.net<mailto:xcat-***@lists.sourceforge.net>>
Date: 05/20/2017 04:06 AM
Subject: [xcat-user] Bcast address 0.0.0.0 Statelite deployment
________________________________




All,

I am assuming many linux experts on this list, so since I am not sure this is purely xCAT issue, any hints are more than welcome 😊

In our statelite deployment the boot interface comes up with broadcast address of 0.0.0.0 –
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 6C:AE:8B:08:8E:03
inet addr:10.10.101.51 Bcast:0.0.0.0 Mask:255.255.255.0

.

The broadcast address can be setup easily with ifconfig eth0 broadcast. Eth1 boots with the right bcast address.

I wonder what could cause this issue, when seems there is no limitation on setting it.

OS is SLES12.2 and deployment method is statelite (statefull works as expected).

THX in advance!
[http://lenovocentral.lenovo.com/marketing/branding/email_signature/images/gradient.gif]

Gilad Berman
HPC Architect
Lenovo EMEA

[Phone]+972-52-2554262
[Email]***@lenovo.com<mailto:***@lenovo.com>





Lenovo.com <http://www.lenovo.com/>
Twitter<http://twitter.com/lenovo> | Facebook<http://www.facebook.com/lenovo> | Instagram<https://instagram.com/lenovo> | Blogs<http://blog.lenovo.com/> | Forums<http://forums.lenovo.com/>


[DCG-Hardware]





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