Minimum Requirements of eUSB Devices Supported on Cisco ASR 1000 Series Routers
New Behavior
From Cisco IOS XE Release 2.3.0 onwards, an additional message is displayed on the auxiliary port and on
the Cisco IOS console port, providing information whether the eUSB device currently used is correct. For
Cisco ASR 1001 Router, this change for eUSB compatibility has been implemented from Cisco IOS XE
Release 2.4.0S onwards. The recommended eUSB devices with the minimum memory capacity for the RP
types compatible are:
Table 94: Matrix for eUSB Memory Capacity Support and Route Processor on ASR 1000 Routers
Router Type
1RU-RP
2RU-RP
4RU-RP1
6RU-RP1
13RI-RP1
4RU-RP2
6RU-RP2
13RU-RP2
When the system is started, Cisco IOS Software detects the capacity of the eUSB device currently used on
the system. If the eUSB device matches the minimum value of the eUSB capacity as specified above then no
messages are displayed at the Cisco IOS console.
However, an informational message is displayed at the auxiliary port. For example, on a 6RU system, at the
auxiliary port, the following message appears if the eUSB is valid:
....
Checking eUSB capacity information for 6RU:ASR1000-RP1 ... 1003520 KBytes [ OK ]
..
However, when an invalid eUSB device is found, the following messages are displayed at the Cisco IOS
Console:
...
%IOSXEBOOT-4-EUSB_PROVISIONING: (rp/0): Unsupported low capacity eUSB detected in 2RU
board
...
The following message is displayed at the auxiliary port:
...
Checking eUSB capacity information for 2RU:ASR1000-RP-2RU ...
The capacity of the installed eUSB device is insufficient.
It is 1003520 KBytes. The recommended capacity is 8 GByte(s).
%IOSXEBOOT-4-EUSB_PROVISIONING: (rp/0): Unsupported low capacity eUSB detected in 2RU board
...
Cisco ASR 1000 Series Router Hardware Installation Guide
530
Removing and Replacing FRUs from the Cisco ASR 1000 Series Routers
eUSB Capacity (Gigabytes)
8
8
1
1
1 (subject to change)
2
2
2