Network Element-Level Management Help >> Basic Device Information>> IPv6 Information >> IPv6 Interface Table

IPv6 Interface Table

This function allows you to view the IPv6 interface table information of a device.

Operation Procedure

  1. Select the Resource tab.
  2. Select the device to be managed from the device list to enter the Device Details page.
  3. Click the IPv6 Information link in the Device Management list.
  4. Select the IPv6 Interface Table tab on the displayed IPv6 information browsing window.

Parameter Description

Parameters related to IPv6 interface tables are described in the following table:

Parameter Parameter Description
IPv6 Interface Description IPv6 interface name
Effective MTU (Byte) Maximum size (in bytes) of the packet that can be received/transmitted by the interface.
Reassembly MTU (Byte) Maximum size (in bytes) of the packet that can be reassembled by the interface.
Interface ID Interface ID. An IPv6 address consists of address prefix and interface ID. Address prefix acts as network numbers of IPv4 addresses; interface ID acts as host numbers of IPv4 addresses. Except the prefix length, the rest part is the interface ID length. The length of an interface ID in IEEE EUI-64 format is fixed to 64 bits. The 64-bit interface ID in an IPv6 address uniquely identifies an interface on the link. The address is derived from the link layer address (MAC address). The interface ID in an IPv6 address is of 64 bits, while an MAC address is of 48 bits; therefore, the hex FFFE (11111111 11111110) should be inserted into an MAC address. To ensure the interface ID derived from the MAC address is unique, you should set the U/L bit (the seventh bit from the higher one) to 1. The result is the interface ID in EUI-64 format.
Interface ID Length (Bit) IPv6 interface ID length
Physical Address Mapped MAC address of the interface
Administration Status Expected operation status of the interface, which is configurable. up indicates the interface can send and receive data packets; down indicates the opposite.
Operation Status Actual operation status of the interface, which is not configurable. The value can be up, down, noIfIdentifier, unknown, or notPresent
Last Update Time Time of the last update. The last update time is calculated as follows: converted to current time (current time - sysuptime + ipv6IfLastChange).