Cisco ASR 1000 Series Software Configuration Guide

Release Number for Behavioral Change
From Cisco IOS XE Release 3.1.0s onwards, the speed as 100 (which is the default speed) will not be displayed
in show running-config interface Fast Ethernet slot/subslot/port command output for a 4-Port Fast Ethernet
SPA.
For Gigabit Ethernet SPAs, the speed as 100 is not displayed in the show running-config interface gigabit
ethernet slot/subslot/port command output. The behavior of SPA-4X1FE-TX-V2 SPA also needs to be
in synchronization with Gigabit Ethernet SPAs.
Note
Old-Behavior
Prior to Cisco IOS XE Release 3.1.0s, the show running-config interface Fast Ethernet slot/subslot/port
command output, displayed both speed as 100 (which is the default speed) when negotiation is configured as
auto for SPA-4X1FE-TX-V2 SPA. As speed 100 is the default configuration it should not be displayed in the
command output for SPA-4X1FE-TX-V2 SPA.
The command output prior to Cisco IOS XE Release 3.1.0s displays the speed as 100 as indicated in the
following example:
show running-config Fast Ethernet 0/3/0
Building configuration...
Current configuration : 81 bytes
!
interface FastEthernet0/3/0
no ip address
speed 10
negotiation auto
end
New Behavior
From Cisco IOS XE Release 3.1.0s onwards, the speed 100 (which is the default speed) is not displayed in
show running-config interface Fast Ethernet slot/subslot/port command output, if negotiation is configured
as auto.
The new command output without the speed as 100 is displayed as follows:
show running-config Fast Ethernet 0/3/0
Building configuration...
Current configuration : 68 bytes
!
interface FastEthernet0/3/0
no ip address
negotiation auto
end
Configuring LAN/WAN-PHY Controllers
The LAN/WAN-PHY controllers are configured in the physical layer control element of the Cisco IOS XE
software. By default, the 1-Port 10-Gigabit Ethernet LAN/WAN PHY SPA initializes in the WAN-PHY mode.
Use the hw-module subslot slot/subslot enable lan command to configure the LAN-PHY mode.
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS XE
Everest 16.5
OL-14127-17 147
Configuring the Ethernet SPAs
Configuring LAN/WAN-PHY Controllers

Cisco ASR 1000 Series Specifications

General

Brand	Cisco
Model	ASR 1000 Series
Category	Network Router
Language	English