ip prefix-list Bharti-ANNOUNCE seq 5 permit 18.104.22.168/24 ip prefix-list Bharti-ANNOUNCE seq 15 permit 22.214.171.124/23 ! ip prefix-list DENY-ALL seq 5 deny 0.0.0.0/0 le 32 ! ip prefix-list VSNL-ANNOUNCE seq 10 permit 126.96.36.199/24 ip prefix-list VSNL-ANNOUNCE seq 15 permit 188.8.131.52/23
Please help me to understand the logic of the prefix list.
Because Bharti SP is getting 184.108.40.206/24 networks only & VSNL is getting 220.127.116.11/23 networks.
Prefix lists are more sophisticated forms that Cisco provides for filtering BGP route advertisements. They filter on IP address just as distribute-lists do, however they are easier to read, and require fewer commands to configure.For example
prefix-list xx seq 10 permit 18.104.22.168/16 ge 18
The statement above allows any route announcement in the range of 22.214.171.124 - 126.96.36.199 but that announcement must have a length greater than 18 bits in the mask. This permits you to allow announcements in the range, but not an announcement equalling the entire range (/16), or even announcements of half the range (/17). Only announcments with a length "greater than or equal to" /18 will be permitted.
With your configuration only /24 and /23 in the network will be out via prefic list for vsnl and vice versa for bharathi.
Check out the below link for more information and implementation of prefix list
Question: Have the phone connected and can ring out-but no sound coming from the handset - analog home phone - phone makes connection and pick up at the other end is ok. Can you help?
Question: Have the phone connected and can ring out-but no sound coming from the handset - analog home phone - phone makes connection and pick up at the other end is ok. Can you help?Answer
iPXE boot in ASR9K
This document applies to NCS5500 and ASR9000 routers and has been verified as such.
traditional ECMP or equal cost multipath loadbalances traffic over a number of available paths towards a destination. When one path fails, the traffic gets r...