Chapter 7 High Latency and Low Bandwidth Interconnection

Performing Additional Configurations on the Cisco IPICS Server

Jitter buffer—Enables support for up to 250 ms of maximum jitter on the network (to support burst latency).

Link outages—Provides support for temporary link outages so that if the connection from the PMC is interrupted, the connection automatically continues when it becomes available again. (The PMC user is not informed of the outage.)

Bandwidth—Supports 64 kbps bandwidth per channel configured over an M1:U12:M2 connection trunk.

Caveat

The first time that the PMC logs in to the server, an error message displays to inform the user that the channels are being disabled. This error occurs because of the time delay to connect. To recover from this error, click OK. After the server completes its tasks, the channels will display on the PMC (this timing will vary based on latency).

Performing Additional Configurations on the Cisco IPICS Server

The following additional configurations are required when you use the central site server or the remote locations deployment solution:

Updating the RMS Configuration, page 7-5

Adjusting ARP Commands, page 7-6

Disabling the RMS Comparator, page 7-6

Merging the Configuration, page 7-6

Disabling the PMC Upload Activity Log Frequency, page 7-7

Updating the RMS Configuration

When you use the central site or the remote locations deployment solution, you must update every RMS that is configured with Cisco IPICS and that is used over a high latency, low bandwidth connection. This configuration update modifies the maximum TCP outgoing queue on a per-connection basis.

To modify the maximum TCP outgoing queue, perform the following procedure on each RMS:

Procedure

Step 1 Enter global configuration mode by entering the following command:

Router# configure terminal

Step 2 To set the maximum TCP outgoing queue to 100000 packets, enter the following command:

Router(config)# ip tcp queuemax 100000

Step 3 To save your configuration, enter the following command:

Router(config)# write mem

Step 4 To exit the router configuration mode, enter the following command:

Router# exit

SRND for Cisco IPICS Release 2.0(1)

 

OL-12456-01

7-5

 

 

 

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Cisco Systems OL-12456-01 manual Updating the RMS Configuration, Caveat, Procedure