Brocade Virtual ADX Switch and Router Guide (Supporting ADX v03.1.00) User Manual

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Brocade Virtual ADX Switch and Router Guide

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Displaying OSPFv3 information

7

This display shows the following information:

For example, to display the SPF tree for area 0, enter the following command at any level of the CLI:

Syntax: show ipv6 ospf spf tree area area-id

The tree keyword displays the SPF table.

The area area-id parameter specifies a particular area. You can specify the area-id in the following
formats:

As an IPv4 address; for example, 192.168.1.1.

As a numerical value from 0 through 2,147,483,647.

In this sample output, consider the SPF node with the router ID 223.223.223.223 to be the top
(root) of the tree and the local router. Consider all other layers of the tree (223.223.223.223:88
and 1.1.1.1:0) to be destinations in the network. Therefore, traffic destined from router
223.223.223.223 to router 1.1.1.1:0 must first traverse router 223.223.223.223:88.

TABLE 34

OSPFv3 SPF Table

This Field...

Displays...

Destination

The destination of a route, which is identified by the following:

“R”, which indicates the destination is a router. “N”, which indicates the
destination is a network.

An SPF node’s router ID (IPv4 address). If the node is a child node, it is
additionally identified by an interface on which the node can be reached
appended to the router ID in the format router-id:interface-id.

Bits

A bit that indicates the capability of the Brocade device. The bit can be set to
one of the following:

B – The device is an area border router.

E – The device is an AS boundary router.

V – The device is a virtual link endpoint.

W – The device is a wildcard multicast receiver.

Options

A 24-bit field that enables IPv6 OSPF routers to support the optional
capabilities. When set, the following bits indicate the following:
V6 – The router should be included in IPv6 routing calculations.
E – The router floods AS-external-LSAs as described in RFC 2740.
MC – The router forwards multicast packets as described in RFC 1586.
N – The router handles type 7 LSAs as described in RFC 1584.
R – The originator is an active router.
DC –The router handles demand circuits.

Cost

The cost of traversing the SPF node to reach the destination.

Next hop

The IPv6 address of the next hop-router.

Interface

The router interface through which to access the next-hop router.

Virtual ADX#show ipv6 ospf spf tree area 0

SPF tree for Area 0

+- 223.223.223.223 cost 0

+- 223.223.223.223:88 cost 1

+- 1.1.1.1:0 cost 1

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