No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

ME60 V800R010C10SPC500 Configuration Guide - LAN Access and MAN Access 01

This is ME60 V800R010C10SPC500 Configuration Guide - LAN Access and MAN Access
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Associating an Eth-Trunk Interface in Static LACP Mode with an mVRRP Backup Group

Associating an Eth-Trunk Interface in Static LACP Mode with an mVRRP Backup Group

Reliable networking usually integrates device-level reliability and link-level reliability. In certain scenarios where the VRRP technology is used for device-level reliability and the trunk technology is used for link-level reliability, traffic on the master device and active link cannot be switched to the slave device and standby link at the same time when a fault occurs on the master device or the active link. As a result, traffic is interrupted. To solve this problem, you can associate trunk with VRRP. This section describes how to associate an Eth-Trunk interface in static LACP mode with an manage Virtual Router Redundancy Protocol (mVRRP) backup group. This configuration allows the Eth-Trunk interface to rapidly detect the status change of the mVRRP backup group. After detecting the status change of the mVRRP backup group, the Eth-Trunk interface can rapidly switch traffic to an available link. This ensures reliable service transmission.

Usage Scenario

Figure 4-10 Typical networking diagram for a CE being dual-homed to UPEs

As shown in Figure 4-10, a CE is dual-homed to UPEs. A VRRP backup group is configured on UPE1 and UPE2 to allow UPE1 to function as the master device and UPE2 to function as the slave device. The physical links between the CE and UPEs are bundled into an Eth-Trunk link to improve link reliability and increase bandwidth.

To implement this networking, ensure that the switchover of the master and slave devices and the switchover of the active and standby links are performed at the same time. When UPE1 functions as the master device, the link between the CE and UPE1 must be the active link. Otherwise, traffic is interrupted. If UPE1 becomes slave whereas the link between the CE and UPE1 still functions as the active link, traffic is still transmitted along this link to UPE1. The slave device UPE1, however, does not forward packets, which causes traffic interruption.

NOTE:
  • Though the Eth-Trunk technology is a point-to-point technology, and the networking is a point-to-multipoint networking, the Eth-Trunk technology still functions well in this networking. VRRP configured on UPEs groups the UPEs into a virtual router, which makes this networking still a P2P networking for the Eth-Trunk technology.

  • Eth-Trunk interfaces configured on the CE and UPEs must be in static LACP mode. The master/slave UPEs require the active/standby links, and only Eth-Trunk links in static LACP mode can work in active/standby mode.

  • An mVRRP backup group must be configured on directly-connected UPEs to implement fast switchover in the VRRP backup group.

    An mVRRP backup group ignores the event that an interface goes Down. When the interface where the mVRRP backup group resides goes Down, the VRRP backup group rapidly changes to Master but not Initialize.

VRRP can track the status of Eth-Trunk member interfaces on the local device. When the master device or the active link becomes faulty, the backup device and standby link become master and active at the same time. In the following situations, however, the switchovers cannot occur at the same time.

  • When the upstream interface on the master UPE becomes faulty, the device switchover occurs but the link switchover does not occur.

  • When the device switchover occurs after the priorities of the master and backup UPEs are changed, the link switchover does not occur.

To solve the problem of traffic interruption caused by asynchronous switchovers in the integrated networking, Huawei provides the technology that associates an Eth-Trunk interface in static LACP mode with an mVRRP backup group.

When the upstream interface on the master device becomes faulty or the network is adjusted, the master device in the mVRRP backup group becomes backup. This allows the Eth-Trunk interface associated with the mVRRP backup group to rapidly detect the status change of the mVRRP backup group and perform the link switchover between the active and standby Eth-Trunk links. This ensures reliable traffic transmission.

NOTE:

On a dual-homing network, besides associating an Eth-Trunk interface in static LACP mode with an mVRRP backup group, you can use only the Eth-Trunk technology to implement both device-level and link-level reliability. For configurations about E-Trunk, see Configuring an E-Trunk for Backup in a Link Aggregation Group.

The association function cannot be configured with the upper or lower limit for the active links in an Eth-Trunk. Otherwise, the negotiated status of the Eth-Trunk may be different from the expected result.
  • The least active-linknumber link-number command configures a lower limit for the active links in an Eth-Trunk.
  • The max active-linknumber link-number command configures an upper limit for the active links in an Eth-Trunk.

Pre-configuration Tasks

Before associating an Eth-Trunk interface in static LACP mode with an mVRRP backup group, complete the following tasks:

Configuration Procedures

Figure 4-11 Flowchart for Associating an Eth-Trunk Interface in Static LACP Mode with an mVRRP Backup Group

Configuring a VRRP Backup Group to Track the Status of Member Interfaces of an Eth-Trunk Interface in Static LACP Mode

When a member interface of an Eth-Trunk interface becomes faulty, the Virtual Router Redundancy Protocol (VRRP) backup group that is configured to track the status of the member interface can detect the fault and implement a master/slave switchover in the VRRP backup group.

Context

A VRRP backup group can track a maximum of eight interfaces in either Increase or Reduce mode.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The view of the interface where the VRRP backup group resides is displayed.

  3. Run vrrp vrid virtual-router-id track interface interface-type interface-number [ increased value-increased | reduced value-reduced ]

    A VRRP backup group is configured to track the status of member interfaces of the Eth-Trunk interface in static LACP mode.

    The interface specified by the interface interface-type interface-number parameter must be a member interface of an Eth-Trunk interface in static LACP mode.

    • When the increased mode is used and the tracked interface goes Down, the priority of the VRRP backup group on the device increases.

      increased value-increased specifies the value added to the current priority value each time the tracked interface goes Down. The value ranges from 1 to 255.

    • When the reduced mode is used and the tracked interface goes Down, the priority of the VRRP backup group on the device where the tracked interface resides reduces.

      reduced value-increased specifies the value deducted from the current priority value each time the tracked interface goes Down. The value ranges from 1 to 255.

    • The interface specified by the interface interface-type interface-number parameter must be a member interface of an Eth-Trunk interface in static LACP mode.

    NOTE:

    You are recommended to configure reduced value-reduced on the interface on which the VRRP backup group is configured when the device where the interface resides has the active Eth-Trunk link, and configure increased value-increased on the interface on which the VRRP backup group is configured when the device where the interface resides has the standby Eth-Trunk link.

    For details about the interface status tracking by VRRP, see Associating a VRRP Backup Group with an Interface.

  4. Run commit

    The configuration is committed.

Configuring an Eth-Trunk Interface in Static LACP Mode associating with an mVRRP Backup Group

Before associating an Eth-Trunk interface with a Management Virtual Router Redundancy Protocol (mVRRP) backup group, ensure that the Eth-Trunk interface works in static LACP mode and the VRRP backup group is an mVRRP backup group.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface eth-trunk trunk-id

    The view of an Eth-Trunk interface in static LACP mode is displayed.

  3. Run lacp track vrrp vrid vrid interface interface-type interface-number

    The Eth-Trunk interface in static LACP mode is associated with an mVRRP backup group.

    • The ID specified by vrid vrid must be the ID of the mVRRP backup group.

    • The interface specified by interface interface-type interface-number must be the interface where the mVRRP backup group function is configured.

  4. Run commit

    The configuration is committed.

Verifying the Configuration of Associating an Eth-Trunk Interface in Static LACP Mode with an mVRRP Backup Group

After an Eth-Trunk interface in static LACP mode is associated with an mVRRP backup group, the status of the Eth-Trunk link varies with the status of the associated mVRRP backup group.

Prerequisites

Associating an Eth-Trunk interface in static LACP mode with an mVRRP backup group has been configured.

Procedure

  • Run the display vrrp [ interface interface-type interface-number [ virtual-router-id ] ] [ brief ] command to check the status and configurations of the current VRRP backup group.
  • Run the display eth-trunk [ trunk-id [ interface interface-type interface-number | verbose ] ] command to check the configurations of the Eth-Trunk interface in static LACP mode and information about its member interfaces.

Example

Run the display vrrp command to view the status and type of the VRRP backup group as well as the types, numbers, and status of the Eth-Trunk member interfaces that are tracked by the VRRP backup group.

<HUAWEI> display vrrp
GigabitEthernet3/0/1 | Virtual Router 1
State             : Master
Virtual IP        : 10.10.1.111
Master IP         : 10.10.1.1
PriorityRun       : 180
PriorityConfig    : 200
MasterPriority    : 210
Preempt           : YES                     Delay Time : 0s
TimerRun          : 1s
TimerConfig       : 1s
Auth Type         : NONE
Virtual MAC       : 0000-5e00-0101
Check TTL         : YES
Config Type       : normal-vrrp
Backup-forward    : disabled
Track IF          : GigabitEthernet3/0/2    Priority Reduced :20
IF State          : DOWN
Track BFD         : 1                Priority Reduced :20
BFD-Session State : UP
Create Time         : 2011-12-29 05:41:23
Last Change Time    : 2011-12-29 05:41:33

Run the display eth-trunk command to view the working mode of the Eth-Trunk interface and information about its member interfaces.

<HUAWEI> display eth-trunk 10
Eth-Trunk10's state information is:
Local:
LAG ID: 10                  WorkingMode: STATIC
Preempt Delay Time: 10      Hash arithmetic: According to flow
System Priority: 120        System ID: 0018-82d4-04c3
Least Active-linknumber: 1  Max Active-linknumber: 64
Operate status: up          Ports: 2
Timeout Period: Slow
--------------------------------------------------------------------------------
ActorPortName          Status   PortType PortPri PortNo PortKey PortState Weight
GigabitEthernet1/0/2   Selected 1GE      10      262    2609    10111100  1
GigabitEthernet1/0/3   Selected 1GE      10      263    2609    10111100  1
GigabitEthernet1/0/4   Unselect 1GE      32768   264    2609    10100000  1

Partner:
--------------------------------------------------------------------------------
ActorPortName          SysPri    SystemID  PortPri PortNo  PortKey   PortState
GigabitEthernet1/0/2   32768  00e0-fc6e-bb11  32768  262   2609      10111100
GigabitEthernet1/0/3   32768  00e0-fc6e-bb11  32768  263   2609      10111100
GigabitEthernet1/0/4   32768  00e0-fc6e-bb11  32768  264   2609      10110000
Translation
Download
Updated: 2019-01-04

Document ID: EDOC1100059440

Views: 27203

Downloads: 18

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Share
Previous Next