display sep interface

Function

The display sep interface command displays information about the interfaces in a SEP segment.

Format

display sep interface [ interface-type interface-number | segment segment-id ] [ verbose ]

Parameters

Parameter	Description	Value
interface-type interface-number	Displays SEP information on a specified interface. interface-type specifies the type of an interface. interface-number specifies the number of an interface.	-
segment segment-id	Displays information about the interfaces in a specified SEP segment.	The value is an integer that ranges from 1 to 1024.
verbose	Displays detailed SEP information on a specified interface, including traffic statistics.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

To monitor the status of an interface or locate an interface fault, use this command to collect statistics and the status of the interface. Then you can locate the interface fault according to the statistics.

When using the display sep interface command:

If no parameter is specified, this command displays information about all the interfaces in SEP segments.
If only interface-type interface-number is specified, this command displays information about a specified interface in SEP segments.
If only segment segment-id is specified, this command displays information about all the interfaces in a specified SEP segment.
If only verbose is specified, this command displays detailed information about all the interfaces in SEP segments.
If interface-type interface-number and verbose are specified, this command displays detailed information about a specified interface in SEP segments.
If segment segment-id and verbose are specified, this command displays detailed information about a specified interface in a specified SEP segment.

Before running this command, complete the following tasks:

Run the sep segment command in the system view to create a SEP segment.
Run the sep segment (interface view) command in the Ethernet interface view to add an interface to a SEP segment and set the role of the interface as required.

Example

# Display information about all the interfaces in SEP segments.

<HUAWEI> display sep interface

SEP segment 1
----------------------------------------------------------------
Interface        Port Role      Neighbor Status            Port Status
----------------------------------------------------------------
GE0/0/1             *secondary    up                  forwarding
GE0/0/2             common        up                  forwarding

# Display information about a specified interface in SEP segments.

<HUAWEI> display sep interface gigabitethernet 0/0/1

SEP segment 1
----------------------------------------------------------------
Interface           Port Role     Neighbor Status     Port Status
----------------------------------------------------------------
GE0/0/1             common        up                  forwarding

# Display detailed information about a specified interface in a specified SEP segment.

<HUAWEI> display sep interface segment 1 verbose

SEP segment 1                              
Control-vlan           :3                                                       
Preempt Delay Timer    :0                                                       
TC-Notify Propagate to :stp                                                        
---------------------------------------------------------------- 
Interface              :GE0/0/1
Port Role              :Config = *primary / Active =  *secondary
Port Priority          :64
Port Status            :forwarding
Neighbor Status        :up
Neighbor Port          :NULL
NBR TLV             rx :0                tx :0
LSP INFO TLV        rx :0                tx :0
LSP ACK TLV         rx :0                tx :0
PREEMPT REQ TLV     rx :0                tx :0
PREEMPT ACK TLV     rx :0                tx :0
TC Notify           rx :0                tx :0
EPA                 rx :0                tx :0 
Interface              :GE0/0/2
Port Role              :Config = common / Active =  common
Port Priority          :64
Port Status            :forwarding
Neighbor Status        :up
Neighbor Port          :LSW3 - GE0/0/1 (00e0-ff7c-6400.0000)
NBR TLV             rx :51820            tx :51882
LSP INFO TLV        rx :50380            tx :5776
LSP ACK TLV         rx :5749             tx :50296
PREEMPT REQ TLV     rx :0                tx :1
PREEMPT ACK TLV     rx :4                tx :0
TC Notify           rx :22               tx :3
EPA                 rx :0                tx :0

**Table 1** Description of the **display sep interface** command output
Item	Description
SEP segment	ID of a SEP segment. To specify the parameter, run the sep segment command.
Interface	Interface name.
Port Role	Role of an interface in a SEP segment: common: common interface primary: primary edge interface secondary: secondary edge interface primary: no-neighbor primary edge interface secondary: no-neighbor secondary edge interface
Neighbor Status	Status of the neighbor state machine: up: Neighbor negotiations succeed and the protocol status of the interface is Up. down: Neighbor negotiations fail and no neighbor relationship is established between the local interface and its peer interface. init: The local interface receives packets from the peer interface and neighbor negotiations start. conflict: The local interface receives packets from multiple peer interfaces and the protocol status of the interface is Conflict.
Port Status	Current status of the interface: discarding: The interface is blocked and can forward SEP packets but not data packets. forwarding: The interface is in Forwarding state and can forward both data packets and SEP packets.
Port Priority	Interface priority. It is an integer that ranges from 1 to 128. By default, the interface priority is 64. To specify the parameter, run the sep segment priority command.
Control-vlan	ID of a control VLAN. A control VLAN is used to forward SEP packets in the local SEP segment. To specify the parameter, run the control-vlan command.
Preempt Delay Timer	Delay in preempting the blocked interface after the faulty link recovers, in seconds. To specify the parameter, run the preempt command.
TC-Notify Propagate to	Object to be notified of a topology change. To specify the parameter, run the tc-notify command.
Neighbor Port	Neighbor interface. It is in the format of system name+interface name (system MAC address or interface ID). If there is no neighbor, the value is NULL.
NBR TLV	Neighbor information packet: rx: indicates the number of received neighbor information packets. tx: indicates the number of sent neighbor information packets.
LSP INFO TLV	LSA packets: rx: indicates the number of received LSA packets. tx: indicates the number of sent LSA packets.
LSP ACK TLV	ACK packets in response to LSA packets: rx: indicates the number of received ACK packets in response to LSA packets. tx: indicates the number of sent ACK packets in response to LSA packets.
PREEMPT REQ TLV	Preemption packets: rx: indicates the number of received preemption packets. tx: indicates the number of sent preemption packets.
PREEMPT ACK TLV	ACK packets in response to preemption packets: rx: indicates the number of received ACK packets in response to preemption packets. tx: indicates the number of sent ACK packets in response to preemption packets.
TC Notify	Packets reporting topology changes: rx: indicates the number of received packets reporting topology changes. tx: indicates the number of sent packets reporting topology changes.
EPA	Packets reporting edge port selection: rx: indicates the number of received packets reporting edge port selection. tx: indicates the number of sent packets reporting edge port selection.