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Cisco TelePresence MCU 4200 Series

TTL of endpoints registering with Cisco acquired Codian internal gatekeepers

What is the TTL of endpoints registering with Cisco acquired Codian internal gatekeepers?

Endpoints can supply a TTL (time to live) in their RRQ (registration request).

  • If a TTL is supplied with a value that is between 30 seconds and 5 minutes, that value is used
  • If the TTL supplied that is shorter than 30 seconds, then 30 seconds is used
  • If the TTL supplied that is longer than 5 minutes, then the value is reduced to 5 minutes
  • If no TTL is supplied, 5 minutes is used

This article applies to the following products:

  • Cisco TelePresence IP GW 3500 / MSE IPGW blade
  • Cisco TelePresence IP VCR 2200 / MSE VCR blade
  • Cisco TelePresence ISDN GW 3200 and 3241 / MSE 8310 and 8321 ISDN blades
  • Cisco TelePresence MCU 4200 / MSE 8420
  • Cisco TelePresence MCU 4500
  • Cisco TelePresence MSE 8510 blade
  • Cisco TelePresence Serial GW 3340 / MSE 8330 blade

May 10th, 2012 TAA_KB_115