Now that Proxmox 5 is out and live, I figured I'd build a test cluster on my lab environment to see if it is any easier/better than my previous attempts. I have run into a snag though.
According to the Proxmox documentation, the preferred environment for clustering includes multicast for the cluster communications (which I've never needed for other environments, but hey, whatever floats the boat). I've never configured it before, and it's not working (please be gentle).
The switches are Dell 8024F - older 10GbE, and they supposedly do support multicast (see section 25 of this User Guide). I seem to have a configuration comparable to what I see for the Cisco switches (igmp snooping, igmp querier) plus the Dell-recommended mld configuration:
omping - which should test multicast connectivity, as far as I can see, is wildly unsuccessful:
Note that ping works fine, however, so it's not a basic IP problem:
Does anyone have any suggestions on what I am missing, remembering my infinite n00b level with both Proxmox and IP multicast?
According to the Proxmox documentation, the preferred environment for clustering includes multicast for the cluster communications (which I've never needed for other environments, but hey, whatever floats the boat). I've never configured it before, and it's not working (please be gentle).
The switches are Dell 8024F - older 10GbE, and they supposedly do support multicast (see section 25 of this User Guide). I seem to have a configuration comparable to what I see for the Cisco switches (igmp snooping, igmp querier) plus the Dell-recommended mld configuration:
Code:
ip routing
interface vlan 10 10
ip address 10.29.6.254 255.255.255.0
ip mtu 9198
exit
interface vlan 11 1
ip address 10.14.6.254 255.255.255.0
ip igmp
ip igmp version 2
exit
...
ip igmp snooping querier
ipv6 mld snooping querier
ip igmp snooping querier address 10.14.6.254
ipv6 mld snooping querier address FE80::A6BA:DBFF:FE6D:9A15
ip igmp snooping querier vlan 11
ipv6 mld snooping querier vlan 11
ipv6 mld snooping querier vlan 11 address FE80::A6BA:DBFF:FE6D:9A15
ip igmp snooping querier election participate 11
ipv6 mld snooping querier election participate 11
ip multicast
ip igmp
...
interface Te1/0/9
spanning-tree portfast
mtu 9216
switchport access vlan 11
exit
!
interface Te1/0/10
spanning-tree portfast
mtu 9216
switchport access vlan 11
exit
!
interface Te1/0/11
spanning-tree portfast
mtu 9216
switchport access vlan 11
exit
!
interface Te1/0/12
spanning-tree portfast
mtu 9216
switchport access vlan 11
exit
!
Code:
root@c6100b-01:~# omping -c 10000 -i 0.001 -F -q 10.14.6.195 10.14.6.196 10.14.6.197 10.14.6.198
10.14.6.196 : waiting for response msg
10.14.6.197 : waiting for response msg
10.14.6.198 : waiting for response msg
10.14.6.196 : waiting for response msg
10.14.6.197 : waiting for response msg
10.14.6.198 : waiting for response msg
10.14.6.196 : waiting for response msg
10.14.6.197 : waiting for response msg
10.14.6.198 : waiting for response msg
10.14.6.196 : waiting for response msg
10.14.6.197 : waiting for response msg
10.14.6.198 : waiting for response msg
^C
10.14.6.196 : response message never received
10.14.6.197 : response message never received
10.14.6.198 : response message never received
Code:
root@c6100b-01:~# ping 10.14.6.196
PING 10.14.6.196 (10.14.6.196) 56(84) bytes of data.
64 bytes from 10.14.6.196: icmp_seq=1 ttl=64 time=0.139 ms
^C
--- 10.14.6.196 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.139/0.139/0.139/0.000 ms
root@c6100b-01:~# ping 10.14.6.197
PING 10.14.6.197 (10.14.6.197) 56(84) bytes of data.
64 bytes from 10.14.6.197: icmp_seq=1 ttl=64 time=0.167 ms
^C
--- 10.14.6.197 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.167/0.167/0.167/0.000 ms
root@c6100b-01:~# ping 10.14.6.198
PING 10.14.6.198 (10.14.6.198) 56(84) bytes of data.
64 bytes from 10.14.6.198: icmp_seq=1 ttl=64 time=0.167 ms
^C
--- 10.14.6.198 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.167/0.167/0.167/0.000 ms
Last edited: