Cisco Router IOS XR Manuale Utente Scaricare il pdf (Pagina 101)

Cisco IOS XR Training Page 101

24. NHRP ( HSRP & VRRP)

Next Hop Resolution Protocol comes in two fashions on the IOS XR. The first

is Cisco proprietary and called Hot-Standby Router Protocol or HSRP and the

other is the industry standard called Virtual Router Redundancy protocol or

VRRP.

This is something that many customers use in order to maintain the

availability of a default gateway on the network. If your customer uses a

static route to a next hop, you might be using this as well.

Like everything else with IOS XR, NHRP is handled a little differently. With

IOS, you configure your standby commands under the interfaces; in IOS XR you

use ROUTER HSRP or Router VRRP.

For this lab we will use interface Te0/1/0/0 and a subnet of 150.1.12.0/24.

First up R1:

RP/0/RSP0/CPU0:R1(config)#int tenGigE 0/1/0/0

RP/0/RSP0/CPU0:R1(config-if)#ip add 150.1.12.1/24

RP/0/RSP0/CPU0:R1(config-if)#no shut

RP/0/RSP0/CPU0:R1(config-if)#commit

RP/0/RSP0/CPU0:R1(config-if)#

Now R2:

RP/0/RSP0/CPU0:R2(config)#int tenGigE 0/1/0/0

RP/0/RSP0/CPU0:R2(config-if)#ip add 150.1.12.2/24

RP/0/RSP0/CPU0:R2(config-if)#no shut

RP/0/RSP0/CPU0:R2(config-if)#commit

Now we should test PING from R1 to R2:

RP/0/RSP0/CPU0:R1#ping 150.1.12.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 150.1.12.2, timeout is 2 seconds:

!!!!!

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

RP/0/RSP0/CPU0:R1#

Good, we have connectivity.

1 2 ... 96 97 98 99 100 101 102 103 104 105

Nessun commento

Cisco Router IOS XR Manuale Utente Pagina 101