Cisco SCE 2000 4/8xFE Manual de usuario descargar pdf (Pagina 24)

Open Caveats

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

OL-7085-08

ToS Marking for TCP: 3 First Packets Receive the ToS Value of Default Class

• Cisco Number 6139

ToS marking is performed after the Class of Service of the flow is determined, that is, only

when the first applicative packet is received and analyzed. In TCP, the 3 first packets (SYN,

SYN-ACK, ACK) have no applicative meaning and therefore cannot have a specific CoS.

Therefore, their ToS receives the value of the default class, which is AF4

Saving Configuration using SNMP Sometimes Fails

• Cisco Number 7664

Cisco’s proprietary SNMP allows saving of the SCEs configuration. The set operation can

fail due to a short timeout of the MIB viewer.

Workaround: Increase the default timeout value of the MIB viewer to approximately 15

seconds. (The original setting in HPoV the timeout is 0.8 sec.)

Telnet Sessions to the SCE May Not Close

• Cisco Number 8749

When the SCE is configured with

no timeout for Telnet sessions, and a disconnect

occurs during an open Telnet session, the telnet session in the SCE will not close.

Workaround: Specify a timeout for Telnet sessions.

SNMP Time-related Variables May Become Incorrect

• Cisco Number 9409

The SNMP variables that are time related may set themselves incorrectly approximately

every 45 days, due to wraparound of the internal counters.

Workaround: Check time-related values every month to make sure they are correct.

PQI Upgrade Requires User to Wait

• Cisco Number 9565

After executing the CLI command PQI install/upgrade/..., the user sees the

progress on the screen, and then the CLI prompt returns before the system has completed

the upgrade. Nevertheless, the installation is not finished for additional several minutes.

The following message appears: Now please wait 5 minutes before

attempting to do anything else. Although it appears that the user can

continue to perform CLI functions, it is necessary to wait.

Note

The user must wait until the operation is complete before continuing to use the CLI.

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Cisco SCE 2000 4/8xFE Manual de usuario Pagina 24