30 
brief: Displays brief PEX information. If you do not specify this keyword, the command displays 
detailed information about attached PEXs and PE CSP statistics for a cascade port or for all cascade 
ports. 
Examples 
# Display detailed information about attached PEXs and PE CSP statistics for Layer 2 aggregate 
interface 1. 
<Sysname> display pex interface Bridge-Aggregation1 
Interface name        : Bridge-Aggregation1 
Link state        : UP 
Description      : Bridge-Aggregation1 interface 
PEX group           : 1 
Virtual slot number : 100 
PEX bridge MAC       : 9a00-abae-0200 
PEX state           : Offline 
PE CSP statistics: 
 Parent: 
 Request errors : 0 
 Response errors: 0 
 PEX: 
 Request errors : 0 
 Response errors: 0 
Table 6 Command output 
Link state 
Link state: 
•  ADM DOWN—
The interface is administratively shut down by using the 
shutdown command. 
•  UP—The link is up for the interface. 
•  DOWN—The link is down for the interface. 
Description  Interface description. 
PEX group  PEX group ID. 
Virtual slot number 
Virtual slot number of the PEX. This field displays 
N/A
 if no virtual slot 
number is configured. 
PEX bridge MAC  Bridge MAC address of the PEX. 
PEX state 
PEX state: 
•  Offline—The PEX is offline. 
•  Online—The PEX is online. The PEX and the parent fabric have 
finished PE CSP negotiation. 
PE CSP statistics  Statistics for PE CSP packets. 
Parent  Statistics for the parent fabric. 
PEX  Statistics for the PEX. 
Request errors  Number of received error PE CSP requests. 
Response errors  Number of received error PE CSP responses. 
 
# Display brief PEX information for Layer 2 aggregate interface 1. 
<Sysname> display pex interface Bridge-Aggregation1 brief 
Interface   Link state   Associated ID   Group   PEX state      Description