J-series and Cisco ME3400 L2 Issues

[giulianocm at uol.com.br (Giuliano (UOL))]

Brad,

We never had the problem, but, today, Juniper release the 9.4 version of 
Junos software.

Maybe you can check the release notes to see if you find something 
related to.

http://www.juniper.net/techpubs/en_US/junos9.4/information-products/topic-collections/release-notes/9.4/noframes-collapsedTOC.html


Att,


> Hello all!
> 
> Recently, KanREN has begun purchasing Ethernet circuits from a new 
> provider who uses a Cisco ME3400 for CPE to provide the link to us. We 
> use primarly Juniper J-2320 and J-4350 routers for our site equipment 
> (running JunOS 9.3 Enhanced Services).
> 
> We've seen a problem getting Layer2 to function correctly with various 
> speed and duplex settings. We tried every combo of hardcoded settings on 
> both sides but simply couldn't resolve some L2 errors and interface 
> resets. In the end, we found a stable setup with the J-series set to 
> auto/auto and the ME3400 set to 100/full.
> 
> Has anyone else seen similar problem using either the J-series or an 
> ME3400? If so, did you ever find a complete resolution (or explanation)?
> 
> Thanks for any insight!
> -- 
> Brad Fleming
> Network Engineer
> Kansas Research and Education Network
> Office:    785-856-9800 x.222
> Moblie:  785-865-7231
> NOC:     866-984-3662
> 
> 
>