NSX Routing: Verifying DLR Interfaces

Summary: The article is to help establish that the basic requisites for a DLR are met and that they are functioning as expected.

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Instructions



After establishing that the DLR is created or that it exists, ensure that all the DLR's logical interfaces are present and have the correct configuration.

Procedure:
To verify the status of DLR interfaces after establishing that the DLR is created or exists, do the following:

  1. From the NSX Manager shell, run the following command to get the cluster ID:
show cluster all 
  1. Run the following command to get the host ID:
show cluster cluster-id 
  1. Run the following command to get the dlrID (Vdr Name):
show logical-router host hostID dlr all brief 
  1. Run the following command to get summarized status information for all interfaces:
show logical-router host hostID dlr dlrID interface all brief 
  1. Run the following command to get the status information for all interfaces or for a specific interface:
show logical-router host hostID dlr dlrID interface (all | intName) verbose 

Example: 
nsxmgr# show logical-router host hostID dlr dlrID interface all verbose 

VDR default+edge-1:1460487509 LIF Information :

Name:                570d45550000000a
Mode:                Routing, Distributed, Internal
Id:                  Vxlan:5000
Ip(Mask):            172.16.10.1(255.255.255.0)
Connected Dvs:       Compute_VDS
VXLAN Control Plane: Enabled
VXLAN Multicast IP:  0.0.0.1
State:               Enabled
Flags:               0x2388
DHCP Relay:          Not enabled

Name:                570d45550000000c
Mode:                Routing, Distributed, Internal
Id:                  Vxlan:5002
Ip(Mask):            172.16.30.1(255.255.255.0)
Connected Dvs:       Compute_VDS
VXLAN Control Plane: Enabled
VXLAN Multicast IP:  0.0.0.1
State:               Enabled
Flags:               0x2288
DHCP Relay:          Not enabled

Name:                570d45550000000b
Mode:                Routing, Distributed, Internal
Id:                  Vxlan:5001
Ip(Mask):            172.16.20.1(255.255.255.0)
Connected Dvs:       Compute_VDS
VXLAN Control Plane: Enabled
VXLAN Multicast IP:  0.0.0.1
State:               Enabled
Flags:               0x2388
DHCP Relay:          Not enabled

Name:                570d455500000002
Mode:                Routing, Distributed, Uplink
Id:                  Vxlan:5003
Ip(Mask):            192.168.10.2(255.255.255.248)
Connected Dvs:       Compute_VDS
VXLAN Control Plane: Enabled
VXLAN Multicast IP:  0.0.0.1
State:               Enabled
Flags:               0x2208
DHCP Relay:          Not enabled

 

Helpful Information:

  • LIF "Name" is unique across all DLR instances on the host. It is the same on hosts and on the DLR’s master Controller node.
  • LIF's "Mode" shows whether the LIF is routing or bridging, and whether it is internal or uplink.
  • "Id" shows the LIF type and the corresponding service ID (VXLAN and VNI, or VLAN and VID).
  • "Ip(Mask)" is shown for "Routing" LIFs.
  • If a LIF is connected to a VXLAN in hybrid or unicast mode, "VXLAN Control Plane" is "Enabled."
  • For VXLAN LIFs where VXLAN is in unicast mode, "VXLAN Multicast IP" is shown as "0.0.0.1”; otherwise the actual multicast IP address is displayed.
  • "State" should be "Enabled" for routed LIFs. For bridging LIFs, it is "Enabled" on the host that is performing bridging and "Init" on all other hosts.
  • "Flags" is a summary representation of the LIF’s state and shows whether the LIF is:
    • Routed or Bridged
    • Whether the VLAN LIF is a DI
    • Whether it has DHCP relay enabled
    • Of note is the flag 0x0100, which is set when a VXLAN VNI join was caused by the DLR (as opposed to a host having a VM on that VXLAN)
    • Flags are displayed in a more readable format in "brief" mode.
nsxmgr# show logical-router host hostID dlr dlrID interface all brief

VDR default+edge-1 LIF Information :

State Legend: [A:Active], [d:Deleting], [X:Deleted], [I:Init],[SF-L:Soft Flush LIF]
Modes Legend: [B:Bridging],[E: Empty], [R:Routing],[S:Sedimented],[D:Distributed]
Modes Legend: [In:Internal],[Up:Uplink]

Lif Name             Id              Mode     State    Ip(Mask)
--------             --              -----    -----    --------
570d45550000000a     Vxlan:5001      R,D,In   A        172.16.10.1(255.255.255.0)
570d45550000000c     Vxlan:5003      R,D,In   A        172.16.30.1(255.255.255.0)
570d45550000000b     Vxlan:5002      R,D,In   A        172.16.20.1(255.255.255.0)
570d455500000002     Vxlan:5000      R,D,Up   A        192.168.10.5(255.255.255.248)

Affected Products

VxBlock and Vblock Systems

Products

ScaleIO
Article Properties
Article Number: 000206928
Article Type: How To
Last Modified: 16 Jun 2025
Version:  2
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