Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

ICMP packet

I have attached a Foundry switch to my Cisco router. I have applied an IP to the Foundry layer 2 switch. I have link and protocol "UP" status on the Cisco and have link lights on my Foundry cross connect. However, I am unable to ping the Foundry from the Cisco across the link. I believe it may be a layer 2/3 problem, but need better information on where or what may be causing this problem.

Thank You.

2 REPLIES
Bronze

Re: ICMP packet

If the link and protocol are both UP:

- verify correct ip address and subnet mask setting on both devices

- check duplex and speed configuration on both sides, they should match.

- check for CRC, FCS, and other errors

- try using a known good cable.

Goodluck.

New Member

Re: ICMP packet

YOu might allso want to check the vlans on the ports and the vlan of the managment interfaces of both switches.

205
Views
0
Helpful
2
Replies
CreatePlease to create content