01-28-2009 01:04 PM - edited 03-06-2019 03:43 AM
Hi,
Please advice and suggest ....
I have 4-sites all connected with each other.
** Site A is connected with Site B with
Two physical links 10MB and 15MB
** Site A is connected with Site C with
Two physical links 8MB and 10MB
** Site A is connected with Site D with
Two physical links 10MB and 4MB
** Site B is connected with Site C with
One physical links 3MB
** Site B is connected with Site D with
One physical links 5MB
Each link from Site A to Site B is configured as vlan and same for all sites...
Routing Protocol used is OSPF and to do failover between links and sites
we play with OSPF cost.....
((( New Requirement ))) : To combine bandwidth of two physical links between Site A && Site B
and configure failover of link with other sites.
[Example : if the links between Site A and Site B is down then Site A should reach Site B via
Site C ]]
If more information is needed please inform...
01-29-2009 12:33 PM
What is your connection type, isdn, frame-relay, partial T1, direct fiber/copper ethernet?
Are the links coming from/to the same router?
If you switch to EIGRP you can use unequal cost load-balancing and have it satisfy all of your requirements, load-balancing and failover.
OSPF takes bandwidth into consideration when calculating cost, so I'm not sure why you are manually manipulating it.
load balancing
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094820.shtml
multi-link ppp
http://www.cisco.com/en/US/tech/tk713/tk507/technologies_tech_note09186a0080112d3b.shtml
01-30-2009 01:00 PM
Thanks for your reply.
Connection type is Copper Ethernet at both end.
Is there an example link from Cisco for EIGRP load balancing...
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