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Cisco Bug: CSCta27224 - add CLI for cell payload scrambling on SPA-1CHOC3-CE-ATM

Last Modified

Feb 28, 2018

Products (1)

  • Cisco 7600 Series Routers

Known Affected Releases

12.2(33)SRD2 15.1(1)S

Description (partial)

Symptoms: This is a sister defect to CSCta27210 to add CLI support for cell 
payload scrambling on SPA-1CHOC3-CE-ATM.
Currently, cell payload scrambling is off by default for ATM DS1 interfaces 
on SPA-1CHOC3-CE-ATM and on for E1 interfaces. Cell payload scrambling is 
currently not configurable. This presents an issue when connecting to ATM 
copper T1 CPEs that require cell payload scrambling or when connecting to E1s 
devices that do not support cell payload scrambling. As such, this defect 
makes cell payload scrambling configurable (on or off) on the ATM CEOP family 
of SPAs for all media types including:

- SPA-1CHOC3-CE-ATM (ATM DS1, ATM E1, ATM IMA DS1, ATM IMA E1)
- SPA-2CHT3-CE-ATM (ATM DS3) 
- SPA-24CHT1-CE-ATM (ATM DS1, ATM E1, ATM IMA DS1, ATM IMA E1)

Conditions: This symptom is observed when using ATM or IMA DS1 T1 or E1 on 
any of the following:

- SPA-1CHOC3-CE-ATM (ATM DS1, ATM E1, ATM IMA DS1, ATM IMA E1)
- SPA-2CHT3-CE-ATM (ATM DS3, ATM E3) 
- SPA-24CHT1-CE-ATM (ATM DS1, ATM E1, ATM IMA DS1, ATM IMA E1)
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