[c-nsp] About LACP interoperability

[Hiromasa Sekiguchi]

Hi all,

I try chennel connection between Cisco and Foundry.

The host is the following.
Cisco : cat3750
Foundry : FWS4802-PREM

+---------+ gi2/0/1         e49 +--------------+
| cat3750 |=====================| FWS4802-PREM |
+---------+ gi2/0/2         e50 +--------------+

### cat3750 ###
interface gigabitethernet 2/0/1
  switchport access vlan ***
  switchport mode access
  channel-group 1 mode active

interface gigabitethernet 2/0/2
  switchport access vlan ***
  switchport mode access
  channel-group 1 mode active
###

### FWS4802-PREM ###
interface ethernet 49
 link-aggregate configure key 20000
 link-aggregate active

interface ethernet 50
 link-aggregate configure key 20000
 link-aggregate active
###

When gi2/0/1(or e49) was down, gi2/0/2 was flapped.
It occur about 90 sec later.

Are there any solution?

Please help!!!