Cisco Router IOS XR Manuale Utente Scaricare il pdf (Pagina 63)

Cisco IOS XR Training Page 63

Cool, we have a route to R2 Loopback interface. Lets PING it!

RP/0/7/CPU0:R1#ping 2.2.2.2 so l0

Thu Mar 29 22:52:17.899 UTC

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/3 ms

RP/0/7/CPU0:R1#

We have connectivity!

Here is the IOS XR Config:

RP/0/7/CPU0:R1#sh run | begin /jointfilesconvert/356165/bgp

Thu Mar 29 22:56:17.937 UTC

Building configuration...

router /jointfilesconvert/356165/bgp 1

address-family ipv4 unicast

network 1.1.1.1/32

neighbor 150.1.12.2

remote-as 1

address-family ipv4 unicast

end

RP/0/7/CPU0:R1#

Here is the same IOS config. With a single neighbor it is pretty simple.

router /jointfilesconvert/356165/bgp 1

network 1.1.1.1 mask 255.255.255.255

neighbor 150.1.12.2 remote-as 1

Now for eBGP – here is where it starts gets interesting!

First we need to configure an IGP so that we can establish Loopback

connectivity – for this we will use ISIS:

RP/0/7/CPU0:R1(config)#router ISIS LAB

RP/0/7/CPU0:R1(config-isis)#net 49.0000.0000.0001.00

RP/0/7/CPU0:R1(config-isis)#interface l0

RP/0/7/CPU0:R1(config-isis-if)#address-family ipv4

RP/0/7/CPU0:R1(config-isis-if)#exit

RP/0/7/CPU0:R1(config-isis)#interface g0/3/0/2

RP/0/7/CPU0:R1(config-isis-if)#address-family ipv4

RP/0/7/CPU0:R1(config-isis-if)#exit

RP/0/7/CPU0:R1(config-isis)#is-type level-2

RP/0/7/CPU0:R1(config-isis)#commit

RP/0/7/CPU0:R1(config-isis-if-af)#exit

RP/0/7/CPU0:R1(config-isis-if)#exit

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Cisco Router IOS XR Manuale Utente Pagina 63