Cisco Bug: CSCta15706 - RLS5-oc12ATM: Scrambling can't be disabled on ATM SPA
Feb 15, 2018
- Cisco IOS
Known Affected Releases
12.2(33)XNE 12.2(33.1.21)MCP5 12.2(33.1.4)MCP5 12.2(33.1.6)REI 12.2(33.1.9)REI 12.2MCP5 12.2REI
None Symptom: Topology : 7600(SRE Throttle which does not have this fix) ------- 7600 (SRC / SRD) Ping failure will happen if cell payload scrambling is turned off on the SRC /SRD image side . Conditions: Turn off cell payload scrambling through CLI on SRE Throttle image side (which does not have this fix) will not have any impact i.e. cell payload scrambling will be always turned on on this image. No matter if it is disabled or enabled through the CLI. In SRC / SRD image cell payload scrambling can be turned off or turned on through CLI . Hence if on the src/ srd image side cell payload scrambling is explicitly turned off then there will be a mismatch in scrambling configuration on both sides leading to a data path failure i.e. ping failure .
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