3com S330 Manuale Utente

C

HAPTER

 4: C

ONFIGURING

 P

ATH

B

UILDER

 S330/S310 M

ODULES

, P

ORTS

, 

AND

 A

PPLICATIONS

You can assign shapers for these queue-trunks based on peak rate (or bulk 
shaping) towards the WAN. To do this, follow these steps:

1 From the Configuration Management menu, select [1] Manage Card to display the 

List Card menu.

2 Select [2] CTX to display the CTX menu, shown in Figure 54.

3 From the CTX menu, select [1] Manage Shapers. The CTX Shapers menu appears, 

Figure 55   CTX Shapers Menu

4 Select the number corresponding to the shaper you want to configure. A prompt 

appears similar to the following:

Enter cells/sec, (150..195 312K)

5 Enter the desired shaper value.

The CTX is an output-buffered switch, with a 64K cell buffer capacity. The 
software sets up a default configuration, but you can change it if you want. For 
example, you should make the queue (buffer) used for your router traffic as large 
as possible. To do this, you must first deallocate memory from another 
queue—OC3/STM-1 queue 3, for example—and reallocate the memory to the 
queue that will carry your router traffic. See “CTX Output Queues and Memory 
Partition” in Appendix B, for reference information pertaining to configuring the 
output buffers.

To change the default output buffer configuration, follow these steps:

1 From the Configuration Management menu, select [1] Manage Card to display the 

List Card menu.

2 Select [2] CTX to display the CTX menu, shown above in Figure 54.

3 From the CTX menu, select [2] Manage Buffers. The CTX Buffers menu, shown in