First thought is that the 2900 and the other switches are not agreeing on
speed and duplex. If one thinks half duplex and the other full duplex there
is a problem. Hard configure the desired values.
The following is a wild guess. It would seem that the Cisco could put
something on the wire that the other switch doesn't understand. The other
switch should just ignore it. Anyway ... I'm assuming that the layer 4-7
switches are not Cisco. The following proprietary protocols are used in
Cisco switches. See if you can turn them off in the 2900.
DISL (Dynamic ISL) using a destination address of 01-00-0C-CC-CC-CC with a
SNAP value of 0x2004
PVST+ (Per VLAN Spanning Tree Plus) destination address of 01-00-0C-CC-CC-CD
PAgP (Port Aggregation Protocol) FastEtherChannel
DTP (Dynamic Trunk Protocol) updated version of DISL.
> -----Original Message-----
> From: Pradeep Kumar [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, December 21, 2000 5:46 PM
> To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]
> Subject: Cisco 2900 Series switch crashes other switch:Any inputs ?
>
>
> Hi Folks,
>
>
> 1. I have 3 cases where a Cisco Cat 2912,2914 switch is
> crashing other Layer 4-7 capable switch.
>
> 2. On testing with a Sniffer, I noted a large number of
> Ethernet collisions.
>
> Any inputs - why ?
>
> the problem dissapears when I remove the Cat 2900 series.
>
> Thanks for responses.
>
> Pradeep
>
>
> ______________________________________________________________
> _____________
> Visit http://www.visto.com/info, your free web-based
> communications center.
> Visto.com. Life on the Dot.
>
> _________________________________
> FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> Report misconduct
> and Nondisclosure violations to [EMAIL PROTECTED]
>
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
