Cisco SCE 2000 4/8xFE Manual de usuario descargar pdf (Pagina 18)

RELEASE SCOS 2.5.1

Release Notes for Cisco Service Control Operating System (SCOS) 2.5.10

OL-7085-08

RELEASE SCOS 2.5.1

The main issues that are fixed in the scope of SCOS 2.5.1 are the following:

• Packet drop on open flow when BW control enforced

• Failure to return from of enforced link failure state

• Introduction of new subscribers during SM resynchronization

• Management port presents wrong duplex

Packets dropped when a Flow Opens and Bandwidth Control is Enforced

When a new flow opens, and bandwidth control mechanisms are enforced on this flow, some of

the first packets of the flow were dropped during the initial time period of 0.5–1 seconds.

This caveat was resolved.

SCE Fails to Return from an Enforced Link Failure State

The SCE can be programmed to enforce link failure. For example, if there is port failure

replication, and the SCE identifies failure on one port, forcing link failure on the other port.

Another example is that the SCE can be programmed to force link failure on the 2 ports of a

link after reboot.

Normally, after enforcing such link failure, the SCE attempts to cancel this forced failure and

restore normal operation of the port or ports. When this happens, in some cases the MAC

device of the port may get stuck, and although the SCE signals to the network element to which

it is connected that the link is up, the SCE actually drops all the packets that it receives from

this port.

This occurred only on the SCE 1000 and SCE 2000, and the caveat was resolved in this

version.

Introduction of New Subscribers During SM Resynchronization

When a SCE loses the connection with the SM, and then the connection is renewed, the SM

attempts to resynchronize the subscriber information of the SCE. In past versions, it was not

possible to introduce new subscribers during resynchronization.

In this version, this caveat was resolved, and subscribers now can be added during

resynchronization.

SCE 2000's Management Port Presentation of Duplex Mode

When the SCE 2000's management port operates in 1000 Mbps, the response to the show

interface CLI command presented an incorrect output.

This caveat was resolved.

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Cisco SCE 2000 4/8xFE Manual de usuario Pagina 18