Creating LACP trunk between a Cisco 6509 and 3com 4800g (2069 Views)
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Occasional Contributor
tcfls2
Posts: 3
Registered: ‎09-09-2011
Message 1 of 3 (2,069 Views)

Creating LACP trunk between a Cisco 6509 and 3com 4800g

We have created an etherchannel on the Cisco side and named it the same as the bridge aggrigation group on the otherside and they are both trunked.  The switches both pinged yesterday, but now one of the 3com switches wont ping.  Does the port-channel on the 3com need to be set to dynamic or static and what does this effect on the 3com.

Occasional Contributor
tcfls2
Posts: 3
Registered: ‎09-09-2011
Message 2 of 3 (2,066 Views)

Re: Creating LACP trunk between a Cisco 6509 and 3com 4800g

We actually got it pinging with our cisco switch, but now it is having problems passing vlans acrossed it.  We created a virtual machine on the blades that are connected to the 3com 4800g through a 10gb link.  The virtual machine cannot ping the our cisco or the 4800g.  I believe it is stopping at the switch.  We setup the vlan 19 interface and gave it an ip address on the 4800g but it doesn't seem to know what to do with it.  We have vlan permit all on the trunks.  We even plugged a laptop into a port and assigned it to vlan 19 and it still couldn't ping the vlan 19 ip on the switch.

Honored Contributor
cenk sasmaztin
Posts: 1,435
Registered: ‎04-02-2008
Message 3 of 3 (2,055 Views)

Re: Creating LACP trunk between a Cisco 6509 and 3com 4800g

please check your config with my example config

 

Hp A series

Interface Bridge-aggregation 1

Interface gigabitethernet 1/0/1

Port link-aggregation group 1

Interface gigabitethernet 1/0/2

Port link-aggregation group 1

 

Cisco

interface Port-channel 1

interface GigabitEthernet 1/20

channel-group 1 mode on

interface GigabitEthernet 1/21

channel-group 1 mode on

 

 

and test

Cisco# show interface port-channel 1 etherchannel

 

<HP-A> display link-aggregation verbose

cenk

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