Cisco InfiniBand 4x User's Guide download pdf (Page 167)

Chapter 7. Configuring the Cisco 3012 InfiniBand to Ethernet gateway 153

! Exit config mode

end

! Save config to NVRAM

write

9. After the changes have been made to both the Ethernet gateway module and the 4948,

re-attach the cables or re-enable the ports.

10.To verify redundancy is working, start a looping ping from the InfiniBand client to the

default gateway IP address (172.16.225.250) located on the 4948, and then remove each

cable, one at a time. During our testing we found that we lost around 10 ping packets

during failover. In the test in Example 7-16, we lost packets 6-14 when we pulled the cable

currently being used by the redundancy (4/1), we then re-inserted 4/1 and removed 8/1,

and lost packets 24-34 during fail-back.

Example 7-16 InfiniBand host pinging the default gateway

[root@localhost ~]# ping 172.16.225.250

PING 172.16.225.250 (172.16.225.250) 56(84) bytes of data.

64 bytes from 172.16.225.250: icmp_seq=1 ttl=255 time=0.307 ms

64 bytes from 172.16.225.250: icmp_seq=2 ttl=255 time=0.331 ms

64 bytes from 172.16.225.250: icmp_seq=3 ttl=255 time=0.289 ms

64 bytes from 172.16.225.250: icmp_seq=4 ttl=255 time=0.301 ms

64 bytes from 172.16.225.250: icmp_seq=5 ttl=255 time=0.339 ms

64 bytes from 172.16.225.250: icmp_seq=15 ttl=255 time=0.256 ms

64 bytes from 172.16.225.250: icmp_seq=16 ttl=255 time=0.275 ms

64 bytes from 172.16.225.250: icmp_seq=17 ttl=255 time=0.345 ms

64 bytes from 172.16.225.250: icmp_seq=18 ttl=255 time=0.275 ms

64 bytes from 172.16.225.250: icmp_seq=19 ttl=255 time=0.292 ms

64 bytes from 172.16.225.250: icmp_seq=20 ttl=255 time=0.279 ms

64 bytes from 172.16.225.250: icmp_seq=21 ttl=255 time=0.287 ms

64 bytes from 172.16.225.250: icmp_seq=22 ttl=255 time=0.295 ms

64 bytes from 172.16.225.250: icmp_seq=23 ttl=255 time=0.331 ms

64 bytes from 172.16.225.250: icmp_seq=35 ttl=255 time=0.344 ms

64 bytes from 172.16.225.250: icmp_seq=36 ttl=255 time=0.286 ms

64 bytes from 172.16.225.250: icmp_seq=37 ttl=255 time=0.294 ms

64 bytes from 172.16.225.250: icmp_seq=38 ttl=255 time=0.342 ms

64 bytes from 172.16.225.250: icmp_seq=39 ttl=255 time=0.280 ms

64 bytes from 172.16.225.250: icmp_seq=40 ttl=255 time=0.277 ms

--- 172.16.225.250 ping statistics ---

40 packets transmitted, 20 received, 50% packet loss, time 38999ms

rtt min/avg/max/mdev = 0.256/0.301/0.345/0.029 ms

7.6.4 CLI reference for this section

This section includes what the appropriate CLI looks after the steps were executed in the GUI

to create this Redundancy Group, as well as after the changes made to the 4948. It is a

useful reference for those wanting to understand the CLI better, or for those that simply want

to use the CLI and not the GUI to achieve this task.

Tip: Example 7-15 is for a switch running IOS. If the upstream switch is running CatOS,

the configuration would be different, CatOS configuration examples are not included in

this document.

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