Cisco Cisco IOS Software Release 12.2(55)SE
6
Release Notes for the Cisco ME 3400E and ME 3400 Ethernet Access Switches, Cisco IOS Release 12.2(55)SE and Later
OL-23325-06
Installation Notes
For //location, specify the IP address of the TFTP server.
For /directory/image-name.tar, specify the directory (optional) and the image to download. Directory
and image names are case sensitive.
and image names are case sensitive.
This example shows how to download an image from a TFTP server at 198.30.20.19 and to overwrite
the image on the switch:
the image on the switch:
Switch# archive download-sw /overwrite
tftp://198.30.20.19/image-name.tar
You can also download the image file from the TFTP server to the switch and keep the current image by
using the /leave-old-sw option instead of the /overwrite option.
using the /leave-old-sw option instead of the /overwrite option.
Recovering from a Software Failure
For recovery procedures, see the “Troubleshooting” chapter in the software configuration guide for
this release.
this release.
Installation Notes
You can assign IP information to your switch by these methods:
•
Using the CLI-based setup program, as described in the switch hardware installation guide.
•
Using the DHCP-based autoconfiguration, as described in the switch software configuration guide.
•
Manually assigning an IP address, as described in the switch software configuration guide.
New Software Features
•
Support for QoS classification and marking on the drop eligibility bit (DEI) in an IEEE 802.1ad
frame. (ME 3400E)
frame. (ME 3400E)
•
Ability to configure the split-horizon feature on an 802.1ad C-UNI or S-UNI Layer 2 switchport to
prevent communication between customer-edge switches with the same VLAN IDs. (ME 3400E)
prevent communication between customer-edge switches with the same VLAN IDs. (ME 3400E)
•
Support for the BFD Protocol on SVIs.
•
Support for configuration of an alternate MTU value to allow specific interfaces a different MTU
than the global system MTU or jumbo MTU.
than the global system MTU or jumbo MTU.
•
AAA guarantee-first support for enabling or disabling system accounting as the first record.
•
An option to suppress verbose 802.1x, authentication manager, and MAC authentication bypass
syslog messages.
syslog messages.
•
Support for increasing the NVRAM buffer size for saving large configuration files.
•
ARP tracking probe enhancement to specify a source IP address for a VLAN.
•
Network Edge Access Topology (NEAT) controls the supplicant port during the supplicant
authentication period. When you connect a supplicant switch to the authenticator switch, the
authenticator port could be error-disabled when receiving Spanning Tree Protocol (STP) bridge
authentication period. When you connect a supplicant switch to the authenticator switch, the
authenticator port could be error-disabled when receiving Spanning Tree Protocol (STP) bridge