Recovery a VPC after an outage.

jramirez · ‎05-02-2012

Hello, I have two Nexus 7000 in a VPC settings. After restarting one of them, VPC services stopped working and servers experienced a traffic cut in their LAN cards. I used the domain command "Reload Restore" in version 5.1, but the problem persists. Any ideas? Thanks.

Pablo.

Oleksandr Nesterov · ‎05-04-2012

Hi - please add

"sh run vpc" and "sh vpc" to see in what state are the links.

Alex

jramirez · ‎05-07-2012

NX-CCSS-1# sho run vpc

!Command: show running-config vpc

!Time: Mon May 7 15:15:41 2012

version 5.0(5)

feature vpc

vpc domain 1

role priority 16380

system-priority 16384

peer-keepalive destination 172.31.100.2 source 172.31.100.1 vrf VPC-KA

reload restore delay 600

interface port-channel11

vpc peer-link

interface port-channel100

vpc 100

interface port-channel101

vpc 101

interface port-channel102

vpc 102

.

interface port-channel135

vpc 135

NX-CCSS-1# sho vpc

Legend:

(*) - local vPC is down, forwarding via vPC peer-link

vPC domain id : 1

Peer status : peer adjacency formed ok

vPC keep-alive status : peer is alive

Configuration consistency status: success

Type-2 consistency status : success

vPC role : primary, operational secondary

Number of vPCs configured : 32

Peer Gateway : Disabled

Dual-active excluded VLANs : -

vPC Peer-link status

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

id Port Status Active vlans

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

1 Po11 up 409-410,412-414,416-418,420-421,432-434,450-452,462,471,501,504,512,517,532-533

vPC status

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

id Port Status Consistency Reason Active vlans

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

100 Po100 up success success 433

102 Po102 up success success 433

103 Po103 up success success 433

104 Po104 up success success 433

105 Po105 up success success 433

106 Po106 up success success 433

107 Po107 up success success 433

108 Po108 up success success 433

109 Po109 up success success 433

110 Po110 up success success 434

111 Po111 up success success 434

112 Po112 up success success 452

113 Po113 up success success 432

114 Po114 up success success 432

115 Po115 up success success 432

116 Po116 up success success 432

117 Po117 up success success 432

121 Po121 up success success 412,414,416-417,451

123 Po123 up success success 412,414,416-417,451

125 Po125 up success success 412,414,416-417,451

126 Po126 up success success 412,414,416-417,451

127 Po127 up success success 412,414,416-417,451

129 Po129 up success success 412,414,416-417,451

130 Po130 up success success 412,414,416-417,451

131 Po131 up success success 412,414,416-417

132 Po132 up success success 412,414,416-417

134 Po134 up success success 413,418

135 Po135 up success success 409-410,501,504

Oleksandr Nesterov · ‎05-08-2012

Hi

From this outputs seems like vpc is fine.

Is the problem still observed on this chassis?

Check "show logging log" for possible reasons of traffic cut. Also I would suggest you to open a TAC case asap - because it would be difficult to troubleshoot iafter some time.

Regards,

Alex

jramirez · ‎05-08-2012

I will.

Thanks Alex.

If you can, you can follow the case. The number is:SR 621610513

Pablo.

Oleksandr Nesterov · ‎05-08-2012

I will follow it.

I see that you already got experienced engineer assigned to the service request - I'm sure the issue will be resolved soon.

Regards,

Alex