Displaying the system id to name mappings – Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) User Manual

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Multi-Service IronWare Routing Configuration Guide

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Displaying IPv6 IS-IS information

Displaying the system ID to name mappings

IS-IS maps the IS-IS system IDs to the hostnames of the devices with those IS. To display these
mappings, enter the following command at any level of the CLI.

Syntax: show ipv6 isis hostname

TLVs

The remaining output displays the type, length, and value (TLV) parameters
included in the LSPs. These parameters advertise reachability to IPv6 devices
or networks. For example:

A router identified as an IS and with its host name can be reached using
the default metric.

An end system within the current area identified as an IP-Extended and
with the IP address, can be reached using the default metric.

An IPv6 prefix is up and can be reached using the default metric.

NLPID

The Network Layer Protocol Identifier (NLPID), which specifies the protocol the
IS that sent the LSP is using. Usually, this value is “cc” but can also be “iso”.

Hostname

The host name of the router that contains the LSP database is displayed.

IPv6 address

The IPv6 address of the interface that sent the LSP. The device can use this
address as the next hop in routes to the addresses listed in the following rows.

IP address

The IP address of the interface that sent the LSP. The device can use this
address as the next hop in routes to the addresses listed in the following rows.

Destination addresses

The rows of information following the IP address row are the destinations
advertised by the LSP. The device can reach these destinations by using the
previously listed IP address as the next hop. Each destination entry contains
the following information:

Metric – The value of the default metric, which is the IS-IS cost of using
the previous IP address as the next hop to reach this destination.

Device type – The device type at the destination. The type can be one of
the following:

End System – The device is an ES.

IP-Internal – The device is an ES within the current area. The IP
address and subnet mask are listed.

IS – The device is another IS. The NET (NSAP address) is listed.

IP-Extended – Same as IP-Internal, except the device uses the
extended TLV fields described in draft-ietf-isis-traffic-02.txt to carry
the information.

IS-Extended – Same as IS, except the device uses the extended TLV
fields described in draft-ietf-isis-traffic-02.txt to carry the
information.

MT-IPv6 - The device uses the IPv6 Multi-Topology TLV fields to carry
the information.

Topology

The topology of the interface.

TABLE 154

Output parameters of the show ipv6 isis database detail command (Continued)

Field

Description

Brocade# show ipv6 isis hostname

Total number of entries in IS-IS Hostname Table: 2

System ID Hostname * = local IS

* 0000.0022.2222 Router2

0000.0011.1111 Router1

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