Would you please comment the following (in brakets are numbers of sections of the document "Cisco ONS 15454 DWDM Reference Manual, Release 9.1", http://www.cisco.com/en/US/partner/docs/optical/15000r9_1/dwdm/reference/guide/454d91_ref.html):
Issues with Y-cable protection (10.18 Y-Cable and Splitter Protection):
- In a MXP_MR_10DME card provisioned with Y-Cable protection, if a failure is detected on the active path, the traffic is switched to the protect card. In the process of performing the switch operation, the actual end-to-end traffic is affected for up to 15-20 seconds.
- There is a traffic hit of upto a couple hundred milliseconds on the MXP_MR_2.5G and MXP_MR_10DME cards in Y-cable configuration when a fiber cut or SFP failure occurs on one of the client ports.
So does the switchover takes "up to 15-20 seconds" or it takes "couple hundred milliseconds"?
Do you have experience with y-cable protection on "OTU2-XP" cards - how much time it takes for switchover?
Thanks in advance,