Users Guide

LAG Mode Status Uptime Ports
A 268 N/A up 14:45:26 Te 1/0 (Up)
Te 1/12 (Up)
Dell#
PE Selection Logic
After you provision port extenders and power them on, the PEs come online according to the selection
logic in the scenarios described in this section.
You may provision cascade ports for different PEs but connect the cascade ports to the same PE. In
this case, only the PE with lowest PE ID comes online. In the following example, both cascade ports
1/0 and 1/12 are cabled to the same PE. However, port 1/0 is provisioned for PE 10; port 1/12 is
provisioned for PE 20. As a result, only PE 10 comes online. PE 20 remains offline and its configured
cascade port is placed in an error state.
Dell# show running-config pe
!
feature extended-bridge
!
pe provision 10
cascade interface TenGigabitEthernet 1/0
stack-unit 0 type C1048P
stack-unit 0 priority 1
!
pe provision 20
cascade interface TenGigabitEthernet 1/12
Dell# show pe brief
- Port Extenders Information --
----------------------------------------------------------
PE-id Status Stack-size Type System-MAC
----------------------------------------------------------
10 online 1 C1048P a0:68:00:3f:92:bc
20 offline 1 C1048P 00:00:00:00:00:00
Dell#show pe errors
PE-id: 10
PE MAC: a0:68:00:3f:92:bc
Interface Errors:
TenGigabitEthernet 1/12 - Error State
You may connect two PEs to a parent C9010 but only provision one PE with cascade ports. In this
case, only the PE connected to the lowest numbered cascade port comes online. In the following
example, PE 10 is provisioned with cascade ports 1/0, 8, and 12. However, only cascade ports 1/0 and
1/12 are cabled to PE 10; port 1/8 is cabled to a different PE. As a result, only PE 10 comes online
becomes it is connected to the lowest numbered cascade port: port 1/0. Port 1/8 is placed in an error
state and the PE to which it connects does not come online.
Dell# show running-config pe
!
feature extended-bridge
!
pe provision 10
cascade interface TenGigabitEthernet 1/0,8,12
stack-unit 0 type C1048P
Dell# show pe
774
Port Extenders (PEs)