So, if that's the case, then why does the 2950T-24 work, with exactly the same config as the 2950T-48?
On Mon, Jun 30, 2008 at 11:25 AM, Phil Brutsche <[EMAIL PROTECTED]> wrote: > It looks to me like you are running into a PAgP (aka Cisco EtherChannel) > vs LACP configuration issue. > > The 2950 series supports both and defaults to PAgP; any and all current > HP switches only support LACP. HP dropped PAgP support a long time ago > and IIRC the 3400cl switches *never* supported PAgP. > > Based on your posted configuration, if you want to do link aggregation > with an between a Cisco and HP (or any other non-Cisco) switch the > configuration for Gi0/1 and Gi0/2 should look something like this: > > interface GigabitEthernet0/1 > switchport trunk pruning vlan none > switchport mode trunk > switchport nonegotiate > flowcontrol send off > channel-protocol lacp > channel-group 1 mode on > > You will also need to make sure the HP switch is configured for LACP; > this snippet will configure port 23 and 24 as a LAG (HP uses the term > "trunk") using the LACP protocol: > > int 23-24 lacp active > trunk 23-24 trk1 lacp > > Kurt Buff wrote: >> The port that has the trunk is gi 0/1 on each of the 2950T-48s. >> >> The config bits that I believe to be are relevant are: >> >> spanning-tree mode pvst >> no spanning-tree optimize bpdu transmission >> spanning-tree extend system-id >> >> interface Port-channel1 >> switchport trunk pruning vlan none >> switchport mode trunk >> switchport nonegotiate >> flowcontrol send off >> >> interface GigabitEthernet0/1 >> switchport trunk pruning vlan none >> switchport mode trunk >> switchport nonegotiate >> flowcontrol send off >> channel-group 1 mode on > > -- > > Phil Brutsche > [EMAIL PROTECTED] > > ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ > ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~ > ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~
