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CloudEngine 12800 and 12800E V200R019C10 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, M-LAG, VLAN, QinQ, VLAN mapping, GVRP, STP/RSTP, MSTP, VBST, ERPS (G.8032), LBDT, and Layer 2 protocol transparent transmission.

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Example for Configuring VLAN-based Layer 2 Protocol Tunneling

Example for Configuring VLAN-based Layer 2 Protocol Tunneling

Networking Requirements

As shown in Figure 14-7, CEs are edge devices on two private networks of an enterprise located in different areas, and PE1 and PE2 are edge devices on the ISP network. VLAN 100 and VLAN 200 are Layer 2 networks for different users and are connected through the ISP network. STP is run on the Layer 2 networks to prevent loops. Enterprise users require that STP run only on the private networks so that spanning trees can be generated correctly.

  • All the devices in VLAN 100 participate in calculation of a spanning tree.

  • All the devices in VLAN 200 participate in calculation of a spanning tree.

Figure 14-7 Networking diagram for configuring VLAN-based Layer 2 protocol tunneling

Configuration Roadmap

The configuration roadmap is as follows:

  1. Configure STP on CEs to prevent loops on Layer 2 networks.

  2. Configure CEs to send STP packets with specified VLAN tags to PEs so that calculation of a spanning tree is complete independently in VLAN 100 and VLAN 200.

  3. Configure VLAN-based Layer 2 protocol tunneling on PEs so that STP packets are not sent to the CPUs of PEs for processing.

Procedure

  1. Enable STP on CEs.

    # Configure CE1.

    <HUAWEI> system-view
[~HUAWEI] sysname CE1
[*HUAWEI] commit [~CE1] stp enable
[*CE1] commit

    # Configure CE2.

    <HUAWEI> system-view
[~HUAWEI] sysname CE2
[*HUAWEI] commit
[~CE2] stp enable
[*CE2] commit

    # Configure CE3.

    <HUAWEI> system-view
[~HUAWEI] sysname CE3
[*HUAWEI] commit
[~CE3] stp enable
[*CE3] commit

    # Configure CE4.

    <HUAWEI> system-view
[~HUAWEI] sysname CE4
[*HUAWEI] commit
[~CE4] stp enable
[*CE4] commit

  2. Configure CE1 and CE2 to send STP packets with VLAN tag 100 to PEs, and configure CE3 and CE4 to send STP packets with VLAN tag 200 to PEs.

    # Configure CE1.

    [~CE1] vlan 100
[*CE1-vlan100] quit
[*CE1] interface 10ge 1/0/1
[*CE1-10GE1/0/1] port link-type trunk
[*CE1-10GE1/0/1] port trunk allow-pass vlan 100
[*CE1-10GE1/0/1] stp bpdu vlan 100
[*CE1-10GE1/0/1] quit
[*CE1] commit

    # Configure CE2.

    [~CE2] vlan 100
[*CE2-vlan100] quit
[*CE2] interface 10ge 1/0/1
[*CE2-10GE1/0/1] port link-type trunk
[*CE2-10GE1/0/1] port trunk allow-pass vlan 100
[*CE2-10GE1/0/1] stp bpdu vlan 100
[*CE2-10GE1/0/1] quit
[*CE2] commit

    # Configure CE3.

    [~CE3] vlan 200
[*CE3-vlan200] quit
[*CE3] interface 10ge 1/0/1
[*CE3-10GE1/0/1] port link-type trunk
[*CE3-10GE1/0/1] port trunk allow-pass vlan 200
[*CE3-10GE1/0/1] stp bpdu vlan 200
[*CE3-10GE1/0/1] quit
[*CE3] commit

    # Configure CE4.

    [~CE4] vlan 200
[*CE4-vlan200] quit
[*CE4] interface 10ge 1/0/1
[*CE4-10GE1/0/1] port link-type trunk
[*CE4-10GE1/0/1] port trunk allow-pass vlan 200
[*CE4-10GE1/0/1] stp bpdu vlan 200
[*CE4-10GE1/0/1] quit
[*CE4] commit

  3. Configure PE interfaces to transparently transmit STP packets of CEs to the peer ends.

    # Configure PE1.

    <HUAWEI> system-view
[~HUAWEI] sysname PE1
[~PE1] vlan 100
[*PE1-vlan100] quit
[*PE1] vlan 200
[*PE1-vlan200] quit
[*PE1] interface 10ge 1/0/2
[*PE1-10GE1/0/2] port link-type trunk
[*PE1-10GE1/0/2] port trunk allow-pass vlan 100
[*PE1-10GE1/0/2] l2protocol-tunnel stp vlan 100
[*PE1-10GE1/0/2] quit
[*PE1] interface 10ge 1/0/3
[*PE1-10GE1/0/3] port link-type trunk
[*PE1-10GE1/0/3] port trunk allow-pass vlan 200
[*PE1-10GE1/0/3] l2protocol-tunnel stp vlan 200
[*PE1-10GE1/0/3] quit

[*PE1] commit

    # Configure PE2.

    <HUAWEI> system-view
[~HUAWEI] sysname PE2
[~PE2] vlan 100
[*PE2-vlan100] quit
[*PE2] vlan 200
[*PE2-vlan200] quit
[*PE2] interface 10ge 1/0/2
[*PE2-10GE1/0/2] port link-type trunk
[*PE2-10GE1/0/2] port trunk allow-pass vlan 100
[*PE2-10GE1/0/2] l2protocol-tunnel stp vlan 100
[*PE2-10GE1/0/2] quit
[*PE2] interface 10ge 1/0/3
[*PE2-10GE1/0/3] port link-type trunk
[*PE2-10GE1/0/3] port trunk allow-pass vlan 200
[*PE2-10GE1/0/3] l2protocol-tunnel stp vlan 200
[*PE2-10GE1/0/3] quit
[*PE2] commit

    If the remote device sends packets of non-standard protocols, first run the l2protocol-tunnel user-defined-protocol protocol-name protocol-mac protocol-mac [ encap-type { { ethernetii | snap } protocol-type protocol-type-value | llc dsap dsap-value ssap ssap-value } ] group-mac { group-mac | default-group-mac } command to define characteristics information about the Layer 2 transparent transmission protocol. Then run the l2protocol-tunnel user-defined-protocol protocol-name vlan { low-id [ to high-id ] } &<1-10> command to enable VLAN-based Layer 2 protocol tunneling.

  4. Configure PEs to replace the destination MAC address of STP packets received from CEs.

    # Configure PE1.

    [~PE1] l2protocol-tunnel stp group-mac 0100-5e00-0011
[*PE1] commit

    # Configure PE2.

    [~PE2] l2protocol-tunnel stp group-mac 0100-5e00-0011
[*PE2] commit

  5. Configure CE2 and CE4 to the priority of a switching device is 4096.

    # Configure CE2.

    [~CE2] stp priority 4096
[*CE2] commit

    # Configure CE4.

    [~CE4] stp priority 4096
[*CE4] commit

  6. Verify the configuration.

    # After the configuration is complete, run the display l2protocol-tunnel group-mac command on PEs. You can view the protocol type or name, multicast destination MAC address, group MAC address, and priority of Layer 2 protocol packets to be transparently transmitted.

    The display on PE1 is used as an example.

    [~PE1] display l2protocol-tunnel group-mac stp
Protocol         EncapeType ProtocolType Protocol-MAC   Group-MAC      Pri      
-----------------------------------------------------------------------------   
stp              llc        dsap 0x42    0180-c200-0000 0100-5e00-0011 0        
                            ssap 0x42

    # After 30s, run the display stp brief command on CE1 and CE2 to view the root in the MSTP region. You can find that a spanning tree is calculated between CE1 and CE2. 10GE1/0/1 on CE1 is the root port and 10GE1/0/1 on CE2 is the designated port.

    [~CE1] display stp brief
MSTID  Port                        Role  STP State     Protection  Cost       Edged
    0  10GE1/0/1                   ROOT  forwarding    none        2000       disable

    [~CE2] display stp brief
MSTID  Port                        Role  STP State     Protection  Cost       Edged
    0  10GE1/0/1                   DESI  forwarding    none        2000       disable

    # After 30s, run the display stp brief command on CE3 and CE4 to view the root in the MSTP region. You can find that a spanning tree is calculated between CE3 and CE4. 10GE1/0/1 on CE3 is the root port and 10GE1/0/1 on CE4 is the designated port.

    [~CE3] display stp brief
MSTID  Port                        Role  STP State     Protection  Cost       Edged
    0  10GE1/0/1                   ROOT  forwarding    none        2000       disable

    [~CE4] display stp brief
MSTID  Port                        Role  STP State     Protection  Cost       Edged
    0  10GE1/0/1                   DESI  forwarding    none        2000       disable

Configuration Files

  • Configuration file of CE1

    #
sysname CE1
#
vlan batch 100
#
interface 10GE1/0/1
 port link-type trunk
 port trunk allow-pass vlan 100
 stp bpdu vlan 100
#
return

  • Configuration file of CE2

    #
sysname CE2
#
vlan batch 100
#
stp instance 0 priority 4096
#
interface 10GE1/0/1
 port link-type trunk
 port trunk allow-pass vlan 100
 stp bpdu vlan 100
#
return

  • Configuration file of CE3

    #
sysname CE3
#
vlan batch 200
#
interface 10GE1/0/1
 port link-type trunk
 port trunk allow-pass vlan 200
 stp bpdu vlan 200
#
return

  • Configuration file of CE4

    #
sysname CE4
#
vlan batch 200
#
stp instance 0 priority 4096
#
#
interface 10GE1/0/1
 port link-type trunk
 port trunk allow-pass vlan 200
 stp bpdu vlan 200
#
return

  • Configuration file of PE1

    #
sysname PE1
#
vlan batch 100 200
#
l2protocol-tunnel stp group-mac 0100-5e00-0011
#
interface 10GE1/0/2
 port link-type trunk
 port trunk allow-pass vlan 100
 l2protocol-tunnel stp vlan 100
#
interface 10GE1/0/3
 port link-type trunk
 port trunk allow-pass vlan 200
 l2protocol-tunnel stp vlan 200
#
return

  • Configuration file of PE2

    #
sysname PE2
#
vlan batch 100 200
#
l2protocol-tunnel stp group-mac 0100-5e00-0011
#
interface 10GE1/0/2
 port link-type trunk  port trunk allow-pass vlan 100  l2protocol-tunnel stp vlan 100
#
interface 10GE1/0/3
 port link-type trunk  port trunk allow-pass vlan 200  l2protocol-tunnel stp vlan 200
#
return
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Updated: 2021-04-01

Document ID: EDOC1100138135

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