• SFP+ is not supported on 1G mode, but the physical link with SFP+ in 1G mode comes up.

• Support of 1G mode on a port and 10G mode on another port in the same interface module is not supported.

• Precision Time Protocol (PTP) is not supported.

• Sync-E is not supported. However, Sync-E is supported in over subscription mode on the interface module.

• Port channel bundling on 1G mode is not supported.

• Although 1G mode is supported on the interface module, the interface is displayed as "Te0/X/Y" depending on the port numbers for both 1G and 10G modes.

• 10G mode support on 8X10GE interface module does not change with dual-rate support.

• Carrier delay configuration of less than 2 seconds is not supported on both 1G and 10G modes for the 8-port 10 Gigabit Ethernet interface module.

Defaulting the Interface Module:

Router# enable
Router# hw-module subslot 0/4 default
Router# end

Changing the Mode:

Router# enable
Router# configure terminal
Router(config)# hw-module subslot 0/4 ether-mode 1G
Router(config) # end

Configuring the Ports:

Router# enable
Router# configure terminal
Router(config)# interface te0/4/0
Router(config)# ip address 63.0.0.1 255.0.0.0
Router(config)# end

Deafulting the Interface Module:

enable
hw-module subslot 0/4 default
end

Changing the Mode:

enable
configure terminal
hw-module subslot 0/4 ether-mode 10G
end

Note	The default is 10G mode.

Configuring the Ports:

enable
configure terminal
interface te0/4/0
ip address 63.0.0.1 255.0.0.0
end

The 8-port 10 Gigbait Ethernet interface module (8X10GE) reqiures eight backplane XFI lines to the ASIC to operate efficiently. The chassis has different backplance capcity or bandwidth on each of its subslot. The 8X10GE interface module could only be used in sublsots that offered the eight XFI backplance lines. The following table shows the slots that 8X10GE interface module support without over subscription mode:

Note

The router supports the 8X10GE interface module individually on the above slots, and offer eight XFI/SFI lines. But as a combination of slots to support 400G bandwidth, only five slots are supported for the 8X10GE interface module. With over subscription or partial mode enabled on the router six slots are available to support the bandwidth.

Over subscription mode enables the operation of the 8X10GE interface module in all subslots with a lesser backplane capacity. Hence, with over subscription mode enabled, all the front plane ports of the interface module are able to receive and transmit traffic.

Partial port mode is used to free the used serializer/deserializer (SerDes) lines to accommodate interface modules that support over subscription in those slots that may utilize the shared SerDes. The advantage of this mode is that the Channelized Network Interface Scheduler (CNIS) of ASIC, a limited resource, is not utilized, as compared to the over subscription mode.

Both these modes aid in increasing the nmber of interface modules in the maximum number of subslots on the chassis.

Interface bandwidth sets and communicates bandwidth value for an interface to higher-level protocols such as OSPFv2 and OSPFv3. Starting with Cisco IOS XE Cupertino Release 17.9.1, when you configure interface bandwidth value for 8-port 10 Gigabit Ethernet Interface module (A900-IMA8Z) and perform triggers such as interface shut or no-shut, IM reload, and Stateful Switchover (SSO), the bandwidth value for the interface is persistently retained. Prior to this release, the bandwidth value would reset to the default value for any trigger.