Brocade Communications Systems 6650 manual Displaying IPv6 neighbor information

5 Displaying global IPv6 information

Displaying IPv6 neighbor information

You can display the IPv6 neighbor table, which contains an entry for each IPv6 neighbor with which the router exchanges IPv6 packets.

To display the IPv6 neighbor table, enter the following command at any CLI level.

Brocade(config)#show ipv6 neighbor
Total number of Neighbor entries: 42	LinkLayer-Addr State Age Port			vlan	IsR
IPv6 Address
2001:DB8:8::25	6400.0dbb.b541 STALE	163	e 1/1/41 5			0
2001:DB8::b200:dff:fe99:4ff5	b000.0d99.4ff5 STALE	162		e 1/1/41 5		0
2001:DB8:8::28	0000.0d9b.4257 STALE	163	e 1/1/41 5			0
2001:DB8:8::2b	c000.0d35.a8e1 STALE	163	e 1/1/41 5			0
2001:DB8::6600:dff:febb:b541	6400.0dbb.b541 STALE	162		e 1/1/41 5

Syntax: show ipv6 neighbor [<ipv6-prefix>/<prefix-length> <ipv6-address> <interface> [<stack-unit>/<slot>/<port> ] <number>]]

The <ipv6-prefix>/<prefix-length>parameters restrict the display to the entries for the specified IPv6 prefix. You must specify the <ipv6-prefix>parameter in hexadecimal using 16-bit values between colons as documented in RFC 2373. You must specify the <prefix-length>parameter as a decimal value. A slash mark (/) must follow the <ipv6-prefix>parameter and precede the <prefix-length>parameter.

The <ipv6-address>parameter restricts the display to the entries for the specified IPv6 address. You must specify this parameter in hexadecimal using 16-bit values between colons as documented in RFC 2373.

The <interface> parameter restricts the display to the entries for the specified router interface. For this parameter, you can specify the Ethernet or VE keywords. Specify the Ethernet port in the <stack-unit>/<slot>/<port>format. Stack-unit is 1. If you specify a VE interface, also specify the VE number.

This display shows the following information.

I	IPv6 neighbor information fields
TABLE 31
Field		Description
Total number of neighbor entries		The total number of entries in the IPv6 neighbor table.
IPv6 Address		The 128-bit IPv6 address of the neighbor.
Link-Layer Address		The 48-bit interface ID of the neighbor.
State		The current state of the neighbor. Possible states are as follows:
		• INCOMPLETE – Address resolution of the entry is being performed.
		• *REACH – The static forward path to the neighbor is functioning

properly.

• REACH – The forward path to the neighbor is functioning properly.

• STALE – This entry has remained unused for the maximum interval. While stale, no action takes place until a packet is sent.

• DELAY – This entry has remained unused for the maximum interval, and a packet was sent before another interval elapsed.

• PROBE – Neighbor solicitation are transmitted until a reachability confirmation is received.

144	Brocade ICX 6650 Administration Guide
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