WAN compression usually compresses the data payload. The HDLC sequence numbers are not in data packets; they are in keepalive packets. They are in the control plane, not the user plane.
I can't say for sure, but my guess is that they are not compressed. If they were, the interfaces wouldn't have a way to monitor the status of the link. What does Cisco documentation say? Sorry I'm in a rush and can't look it up. Good question! Thanks for returning the forum to something meaningfull. Priscilla Simmi Singla wrote: > > Hi All, > I have question regarding HDLC,a silly question but still a > doubt.See I have HDLC connection back to back.on one interface > I configure compression and other interface on other router no > compression.Now when I debug the my seq and mine seen no.s are > in sync I mean same they inncrease ,that different no layer 3 > communication I am able to do.If such case occurs how from > debug commands I will come to know. > I enabled debug serial interface but it only shows me that the > no get increment that too in proper order but I have read that > in Karl Solie book Vol1 that it will stop increment the > keepalives. > So can anybody guide me. > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=60356&t=60337 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
