04-09-2010 11:55 PM - edited 03-04-2019 08:05 AM
Dear
I have two links from one ISP and it is terminating on two Routers. How can I configure redundancy with BGP. If one router goes down the other one have to send the traffic. One of the links is Active and the other one is standby.
04-10-2010 12:13 AM
Dear Ali,
Primary Router:
interface FastEthernet0/0
description secondaary router
ip address 10.10.1.1 255.255.255.0(Ip addresss for the 100 MB Ethet link on my primary router)
no ip redirects
duplex auto
speed auto
standby 1 ip 10.10.1.2
!
(This puts both routers interfaces in the same subnet, with a common standby group of 1 on that link. So both routers
are responsible for acting together as the virtual router 10.10.1.2 Hosts are configured with a static default gateway,
IP address that of the virtual router, 10.10.1.2 Virtual router)
!
standby 1 timers 5 15
standby 1 priority 110
standby 1 preempt
standby 1 authentication username
standby 1 track Ether Interface for 100 MB ckt (GE0/0) on this router
Secondar Router:
interface FastEthernet0/0
description secondaary router
ip address 10.10.1.3 255.255.255.0 (Ip addresss for the 100 MB Ethet link on my primary router)
no ip redirects
duplex auto
speed auto
standby 1 ip 10.10.1.2 (This puts both routers interfaces in the same subnet, with a common standby group of 1 on that link. So both routers
are responsible for acting together as the virtual router 10.10.1.2 Hosts are configured with a static default gateway,
IP address that of the virtual router, 10.10.1.2 Virtual router)
!
standby 1 timers 5 15
standby 1 priority 95
standby 1 preempt
standby 1 authentication username
standby 1 track Interface of the DS3 Circit on this router
HTH.
Vaib...
04-10-2010 12:32 AM
Dear
In my case I have configured Vlan 630 for the fail over. Please see the configuration below. I need BGP confifuration for the redundancy to the ISP if the active Router fails.
Interface G7/1
Connect_To_Sec
switch port
switch port trunk allowed vlan 100,101,630
switch port mode tru
!
!
Interface G7/2
Connect_To_Sec
switch port
switch port trunk allowed vlan 100,101,630
switch port mode tru
!
!
Interface vlan 630
ip add 172.16.3.1
stand 63 ip 172.16.3.3 (172.16.3.2 is secondary IP)
standby 63 preemt
04-10-2010 03:16 AM
Proper BGP configuration requres experience and cannot be done by end users, consequently I recommend you engnage a reputable consltant ot cerfied cisco partner.
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