VLAN Translation Limitations for L2 FDB per each standard vlan

[Joy_Liu]

Hi All,

I do "vlan translation" on x440-8p, after put it into production environment, I saw many error logs show up on my laptop console, shown as below.

05/31/2017 04:30:48.93 Unable to Add IPmc vlan 3204 for 1:1 s,G=a31104b7,e00000fc IPMC 48, unit 0 No resources for operation05/31/2017 04:30:48.93 Unable to Add IPmc vlan 3204 for 1:2 s,G=a31104b7,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.38 Unable to Add IPmc vlan 3204 for 1:1 s,G=a31104b7,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.38 Unable to Add IPmc vlan 3204 for 1:2 s,G=a31104b7,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.49 Unable to Add IPmc vlan 204 for 1:9 s,G=a31104b7,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.49 Unable to Add IPmc vlan 204 for 1:10 s,G=a31104b7,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.49 Unable to Add IPmc vlan 3204 for 1:1 s,G=a31104e8,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.49 Unable to Add IPmc vlan 3204 for 1:2 s,G=a31104e8,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.49 Unable to Add IPmc vlan 204 for 1:9 s,G=a31104e8,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.49 Unable to Add IPmc vlan 204 for 1:10 s,G=a31104e8,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.56 Unable to Add IPmc vlan 3204 for 1:1 s,G=a31104e8,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.56 Unable to Add IPmc vlan 3204 for 1:2 s,G=a31104e8,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.56 Unable to Add IPmc vlan 204 for 1:9 s,G=a31104e8,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.56 Unable to Add IPmc vlan 204 for 1:10 s,G=a31104e8,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.93 Unable to Add IPmc vlan 3204 for 1:1 s,G=a31104b7,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:48.93 Unable to Add IPmc vlan 3204 for 1:2 s,G=a31104b7,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:52.06 Unable to Add IPmc vlan 3204 for 1:1 s,G=a31104c5,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:52.06 Unable to Add IPmc vlan 3204 for 1:1 s,G=a31104c5,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:52.06 Unable to Add IPmc vlan 3204 for 1:2 s,G=a31104c5,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:52.06 Unable to Add IPmc vlan 204 for 1:9 s,G=a31104c5,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:52.06 Unable to Add IPmc vlan 3204 for 1:2 s,G=a31104c5,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:52.06 Unable to Add IPmc vlan 204 for 1:9 s,G=a31104c5,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:52.06 Unable to Add IPmc vlan 204 for 1:10 s,G=a31104c5,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:52.28 Unable to Add IPmc vlan 3204 for 1:1 s,G=a31104c5,e00000fc IPMC 48, unit 0 No resources for operation
05/31/2017 04:30:52.28 Unable to Add IPmc vlan 3204 for 1:2 s,G=a31104c5,e00000fc IPMC 48, unit 0 No resources for operation

After lookup refer docs, I found the limitation of vlan translation as below.

The VLAN translation feature has the following limitations:

Requires more FDB entries than a standard VLAN.

http://extrcdn.extremenetworks.com/wp-content/uploads/2014/04/Layer_2_Basics.pdf

I have two questions so far.

1.Which cli or any ways could be find out, how many fdb entries per a standards vlan on extreme switch?

2.If fdb entries over a standard VLAN, what impact will occur with production environment?

Thanks.

Regards,
Joy Liu

[Joy_Liu]

Hello Bin,

Thanks for your response.

My switch version is 16.2.2.4.

In addition, because of the switch is off line now, so I can not provide the information for you.

We will put another switch into production, maybe next week. and I will log the infos you need for you.

Regards,
Joy

[Bin]

Hello Joy,

The IPv4Mc error message is displayed:
1. when the hardware table of the I/O module(s) go out of sync with the software table
or
2. there is 'no resource' for installing packet entry in the hardware.

What is your switch version?

Is there any multicast implementation in your network?

Could you provide the following from your switch?
• show iproute reserved-entries statistics
• show iparp
• show mcast cache

Best regards,
Bin