I have two 3745's Edge routers that will connect to our parent company via 2 T1's (one on each router). The HSRP address (running between these routers) is the default gateway for our PIX failover bundle. Additionally these routers are also directly connected to each other. Everything seems fine except that I can't figure out how to load balance the traffic on these links. EIGRP is used everywhere.
If you set the delay the same on both interfaces on both sides it should load balance .
also keep in mind that with Cef enabled it will only load balance via per source & dest pairs not per packet , You could have a host that is performing a big download and all the traffic in that conversation will utilize the same pipe , while the other pipe is not utilized .
Thank you, but I am wondering, wouldn't the traffic favor the link on the HSRP Active router since the traffic from the PIX is entering via the HSRP Active Router's Ethernet interface, and then it would be an additional hop to the other router?
Yes the traffic leaving your lan will always go to the active HSRP router , you could create 2 hsrp groups and make them active on separate routers then point half the users at one HSRP group and the other half at the other group .
Running two hsrp groups won't help here, since you're pointing the pix's default gateway at the single address, unless you define two default gateways, and point each one at a seperate group address. You could take a look at the Global Load Balancing Protocol (GLBP), but I think it's going to be restrictedby the single PIX mac address as well.
Another option, if you are willing to spend a little on another interface, is to provide a second link between the two routers strictly for load sharing. Define HSRP so one router will always be master unless it fails. Then adjust your link weights so the master's link to the other location has the same "cost" as the sum of the backup's link plus the link between backup and master.
Standard or CEF load balancing will then meet your needs (the trick is to have recognize that the router will not chose an alternate route for load balancing if it requires sending the packet out the same interface it arrived on).
Note that because of the way the route metrics must be modified, the backup router will only use its local remote link when it takes over the HSRP address.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.