I have to verify the correct working of UDLD protocol on copper interfaces.
In my lab two 6509 Catalysts are connected betweeen them with 4x10/100/1000 links, taken form a WS-X6148A-GE-TX port adapter. An Etherchannel is used to combine these links into one logical channel. Autonegotiation is already enabled on the involved interfaces and Rapid Spanning Tree is configured.
I'm planning to enable aggressive UDLD on all these interfaces with the "udld port aggressive" command; I'm looking a way to test if it works. I think the most critical point would be how to simulate an unidirectional link.
Any idea how to implement it? I''ve read on a forum about one possible strategy: to put a non-Cisco L2 device between the two Catalysts and unplug one side after the UDLD peers have been created.
Has anyone tested it successfully? Any other suggestion about alternative ways to have an unidirectional link on copper interfaces?
I have only one doubt (consider the case of two additional switches between the 6500s).
Do I have to enable also Layer 2 Protocol Tunneling on the additional switches in addition to 802.1Q Tunneling? I was wondering if I have to do it because on the 6500s RSTP and VTP are globally enabled, an Etherchannel is configured on the back-to-back links and now I have to configure UDLD too...
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.