Hi, all
There is a strange problem with FE interfaces on AS5400. I've connect this way: AS5400 (FE) <-> (GE) Cat3750. Patch-cord between them is straight (non-crossover) and 100% good enough to work on speed of FastEthernet. Ports both on AS5400 and 3750 are in auto mode.
-- 3750 --
interface GigabitEthernet1/0/9
description == to AS5400 Fa0/0 ===
switchport mode access
----------
-- 5400 --
interface FastEthernet0/0
description === to Cat3750 Gi1/0/9 ===
no ip address
no ip route-cache
duplex auto
speed auto
----------
Then I get a lot of such errors on 3750:
6d09h: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/9, changed state to up
6d09h: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/9, changed state to down
6d09h: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/9, changed state to up
6d09h: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/9, changed state to down
6d09h: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/9, changed state to up
6d09h: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/9, changed state to down
In some time I get on 3750:
%PM-4-ERR_DISABLE: link-flap error detected on
Gi1/0/9, putting Gi1/0/9 in err-disable state
On 5400 there is no any error.
Interesting thing. When I set "shutdown" on 3750 interface I see this status on 5400 "FastEthernet0/0 is up, line protocol is down".
Instead of 3750 we check the same configuration with 3550 and D-Link swicth. The same situation.
Pls look through attachments for additional info about configs and status.
I need to decide if I can fix 5400 or need to replace it at all.
Thanks a lot.
Dmitry.
