Version 6.8 69 Mediant MSBR
Configuration Guide 11. Dynamic IP Routing
11.4 Advanced Routing Examples
The following are examples of Advanced Routing.
11.4.1 Multi-WAN with BGP and Static Route
This example shows a scenario with multi-WAN topology, involving two types of
technologies for redundant connectivity -- BGP dynamic routing protocol static routing,
where each protocol runs on a different physical interface.
This type of connectivity provides redundancy and a failover option for cases where the
primary service provider fails.
Note that even though the static route should be preferred over the BGP, it is fine-tuned to
be a “floating” route only for an ISP failure scenario, through fine-tuning BGP’s
administrative distance, and the static route’s metric.
Figure 11-5: Multi-Wan with Floating Static Route
11.4.1.1 Configuration
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Basic Configuration omitted
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MSBR(config-data)# router bgp 65000
MSBR(conf-router)# bgp router-id 1.1.1.1
MSBR(conf-router)# bgp log-neighbor-changes
MSBR(conf-router)# network 100.0.12.0/24
MSBR(conf-router)# network 192.169.0.0/24
MSBR(conf-router)# neighbor 100.0.12.20 remote-as 55101
MSBR(conf-router)# neighbor 100.0.12.20 Activate
MSBR(conf-router)# distance bgp 1 1 1
MSBR(conf-router)# exit
MSBR(config-data)# ip route 0.0.0.0 0.0.0.0 gig 0/0 40
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