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Cisco Bug: CSCta46347 - SLOS gets stuck while making 2/4 port oc48 to 1 port oc48 connection up.

Last Modified

Dec 17, 2010

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases

12.2XN

Description (partial)

None

Symptom:

Connecting a 2 or 4 port OC48 POS SPA{SPA-2XOC48-POS/RPR or SPA-4XOC48-POS/RPR} back to back with either 1, 2 or 4 port OC48 POS SPA{SPA-2XOC48-POS/RPR or SPA-4XOC48-POS/RPR or SPA-1XOC48-POS/RPR} could push the corresponding POS inteface into down/down with SLOS.

Conditions:

It's a timing issue and could trigger with the following sequence of operations,

1. Insert the 2 or 4 port OC48 SPA{SPA-2XOC48-POS/RPR or SPA-4XOC48-POS/RPR} without any cable connected.

2. Connect the cables.

3. Do 'no shut'  (enable) on the ports.

This could result into the POS interfaces being stuck in SLOS.
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