Voyager Reference Guide
467
Sample Configuration 2
The following figure shows a network with three routers implementing one
Virtual Router, to back up a single default router.
In this configuration, the end hosts install a default route to the IP address of
virtual router #1 (IP A) and all routers run VRRP. The router on the left has its
address configured as Virtual Router #1 (VRID=1) and the other two routers
are Backup routers for Virtual Router #1, configured with different priorities.
If the router on the left should fail, the other routers will use VRRP to
determine which of them will take over Virtual Router #1 and its IP addresses.
In this example, the router on the right will take over Virtual Router #1, as it
has the higher priority. If it should also fail at some later time, the center
router will take over Virtual Router #1. Default router service to the hosts is
uninterrupted throughout.
Note that in this example, IP B and IP C are not backed up by Virtual Router
#1. These addresses are only used by the routers as their interface addresses.
In order to back up IP B and IP C, additional virtual routers would have to be
configured.
Host 3
Host 4
Host 2
Host 1
Nokia Platform
(Default)
Nokia Platform
(Backup)
IP Address A
IP Address C
Ethernet
or
FDDI
00342
Nokia Platform
(Backup)
IP Address B
VRID=1
Priority=4Priority=5
Default Route=
IP Address A
Default Route=
IP Address A
Default Route=
IP Address A
Default Route=
IP Address A
Содержание Network Voyager
Страница 1: ...Voyager Reference Guide Part No N450820002 Rev A Published December 2003 ...
Страница 4: ...4 Voyager Reference Guide ...
Страница 30: ...2 How to Use Voyager 30 Voyager Reference Guide ...
Страница 32: ...3 Command Line Utility Files 32 Voyager Reference Guide ...
Страница 220: ...5 Configuring Interfaces 220 Voyager Reference Guide ...
Страница 446: ...7 Configuring Traffic Management 448 Voyager Reference Guide ...
Страница 488: ...8 Configuring Router Services 490 Voyager Reference Guide To make your changes permanent click SAVE ...
Страница 618: ...10 Configuring Security and Access 620 Voyager Reference Guide ...
Страница 668: ...14 Configuring IPv6 670 Voyager Reference Guide ...
Страница 672: ...15 IPSO Process Management 674 Voyager Reference Guide ...
Страница 700: ...Index 702 Voyager Reference Guide ...