Zero downtime, no, but quite minimal yes. Out of curiosity I started pingin router A from router B. Changed the mask on router A and dropped 1 packet during the change. It then resumed pinging even though the masks were not the same so the impact was relatively unnoticeable.
Dave sam sneed wrote: > > Hello group, > > I have a question that could probably be easily anwered. We are changing > our subnet mask to add a new network. Its is on a 4700 router with ip > classless setup. We use real IP's but i'll but private ones on the example.. > Ex. eth0 is now 172.16.10.0/24. I want to split this network in half so I > wish to make eth0 172.16.10.0/25 and eth1 172.16.10.128/25. Eth0 leads to > our production network. I want to have this change over with zero downtime. > The Ip address on the interface (172.16.10.1) must stay the same. Is there > anyway to change the subnet mask only with zero downtime? UNIX allows you to > put 2 statements on a singel line split by a ; . Does cisco ios have > something simliar? > > sam sneed -- David Madland Sr. Network Engineer CCIE# 2016 Qwest Communications Int. Inc. [EMAIL PROTECTED] 612-664-3367 "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=21586&t=21576 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]