I need to know how it is possible to load balance traffic when using BGP between 3 AS's. I didn't think BGP would load balance anything but how would one accomplish this? At least per session/host connection...
We do egress load balancing to different ASs. I have a paper pending publication by Cisco press on this subject. If you tell me your email, I'll
send it to you.
Basically we block (see note below) incomming BGP routes, and send egree traffic (outbound Internet traffic) via multiple (same cost) default gateway statements. This provides equal cost egress traffic, regardless of the ingress traffic or hops. We have been running 2 and at times 3 different ISPs using this method for over 2 years now.
Note - If you have customers that need full BGP routes, their is a solution for this too (but it's not in my paper)...
Anyone else interested in an early copy of this paper, please let me know...
State ISP (AS19713) & Wide Area Network Engineering
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...