[j-nsp] Junos upgrade 7.0R2.7->7.3R2.9 on M5 and a problem with auto negotiation on 12xFE pic

[dmitri at nominet.org.uk]

I agree. But if the Junos behaviour changed I think it should have been 
mentioned in Release Notes.

Regards
Dmitri

"Richmond, Jeff \(ELI\)" <jeff_richmond at eli.net> wrote on 07/11/2005 
15:42:29:

> Not sure if it is a bug or not, but setting fixed on one side and 
> auto on the other is never a good idea. I know it is convenient, but
> more often than not, you'll find that it causes more problems than 
> it solves, unfortunately.
> 
> Good luck,
> -Jeff
> 
> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net
> [mailto:juniper-nsp-bounces at puck.nether.net]On Behalf Of
> dmitri at nominet.org.uk
> Sent: Monday, November 07, 2005 6:58 AM
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] Junos upgrade 7.0R2.7->7.3R2.9 on M5 and a problem with
> auto negotiation on 12xFE pic
> 
> 
> Hi,
> 
> I just tried to upgrade Junos on M5 from 7.0R2.7 to 7.3R2.9 and 
> encountered a problem. We have some devices connected to 12xFE pic which 

> only can do 10M half-duplex. With any Junos up to 7.0 we hadn't had any 
> problems with them and M5 always auto-negotiated half-dulex and 10M. 
Now, 
> after upgrading to 7.3R2.9, phisical links with these devices stay down 
> unless I explicitly set the interfaces on M5 to 10M and half-duplex. I 
> haven't found anything about it in Release Notes.
> Has anyone encountered it? Is it a bug? Below is our hardware 
> configuration.
> 
> Thanks
> Dmitri
> 
> show chassis hardware
> Hardware inventory:
> Item             Version  Part number  Serial number     Description
> Chassis                                50434             M5
> Midplane         REV 03   710-002650   HF1461            M5 Backplane
> Power Supply A   Rev 04   740-002497   LK23061           AC Power Supply
> Power Supply B   Rev 04   740-002497   LK23063           AC Power Supply
> Display          REV 04   710-001995   HF1167            M10 Display 
Board
> Routing Engine   REV 06   740-003239   9000006978        RE-2.0
> FEB              REV 09   710-002503   HF1641            Internet 
> Processor IIv1
> FPC 0                                                    FPC
>   PIC 1          REV 04   750-004176   AV1687            12x FE, 100 
> BASE-TX
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