how to query Information About a VLAN and Interfaces in the VLAN

Latest reply: Jul 22, 2018 19:35:38 532 3 0 1

hwL2VlanMIBTable describes created VLAN information on the device, including the VLAN description and information about interfaces in VLANs.

You can query information about all interfaces added to a VLAN in tagged and untagged modes through hwL2VlanPortList, excluding the Eth-Trunk.

Table 1 Description of MIB objects

Object

Description

OID

hwL2VlanPortList

This object indicates information about the interfaces that join VLANs in tagged and untagged modes.

1.3.6.1.4.1.2011.5.25.42.3.1.1.1.1.3

To query information about the interfaces that join a VLAN, perform the following steps:

  1. As shown in Figure 1, select hwL2VlanPortList and perform the Walk operation to query information about all created VLANs and interfaces that join the VLANs.
    The query result in red box is used as an example:
    • In the first column, the value 2 in hwL2VlanPortList.2 (octet string) indicates information about all interfaces in VLAN 2.
    • In the second column, 00.00.C0 is a set of indexes of interfaces in VLAN 2, which is displayed in hexadecimal notation. The value is converted into 00000000 00000000 11000000 in binary notation. he index starts from 0 in ascending order. The value 1 indicates that the corresponding interface joins VLAN 2. The query result indicates that interfaces 16 and 17 join VLAN 2.
    Figure 1 Querying information about interfaces in the VLAN 
    fig_dc_mib_vlan_example_000501.png
  2. Query the mapping between interface names and interface indexes.

    hwL2IfTable describes information about Layer 2 interfaces. You can query the mapping between interface names and interface indexes through hwL2IfPortName.
    Table 2 Description of MIB objects

    Object

    Description

    OID

    hwL2IfPortName

    This object indicates the interface name corresponding to the Layer 2 interface index.

    1.3.6.1.4.1.2011.5.25.42.1.1.1.3.1.19

    As shown in Figure 2, select hwL2IfPortName and perform the Walk operation to query the interface names corresponding to all Layer 2 interface indexes on the device.

    The query result in red box is used as an example:

    hwL2IfPortName.16 (octet string) GigabitEthernet0/0/14 indicates that interface with index 16 corresponds to GigabitEthernet0/0/14, that is, GigabitEthernet0/0/14 joins VLAN 2.

    hwL2IfPortName.17 (octet string) GigabitEthernet0/0/15 indicates that interface with index 17 corresponds to GigabitEthernet0/0/15, that is, GigabitEthernet0/0/15 joins VLAN 2.

    Figure 2 Querying interface names 
    fig_dc_mib_vlan_example_000502xs.png
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Created Jul 15, 2018 23:10:57 Helpful(0) Helpful(0)

how to check port index and ifindex?
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Created Jul 16, 2018 14:48:36 Helpful(0) Helpful(0)

Hey Tony, check this KB1000442120.
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“We only get answers to the questions that we ask.” physicist Werner Heisenberg
Created Jul 22, 2018 19:35:38 Helpful(0) Helpful(0)

[HUAWEI-diagnose] display ifnet ifnet gigabitethernet 4/0/6
Interface GigabitEthernet1/4/0/6, Address 0x108e6868, sizeof ifnet 972, Non-zer o value:
Interface index: 0x125
Interface top index: 0x125
Interface network index: 0x125
Interface trunk id: 0xffffffff
Interface L2/L3 flag: 0x1
Interface L2 port index: 0x84
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