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5

Closed user group (CUG) is a call restriction service among the optional services of 
X.25. It is mainly used to restrict originating or receiving call capabilities for data 
transmission equipment (DTE) users. The users in the same CUG can still call each 
other, but users of different CUGs cannot. As a result, this allows you to form a 
private data communication subnet on an X.25 public data communication network.  
 
The X.25 CUG service can be configured using these CLI commands: 
 

x25 map protocol protocol-address x121-address x.121-address  
closed-user-group group_number 
x25 call-facility closed-user-group group-number undo x25 call-facility closed-

user-group 

x25 cug-service [ incoming-access ] [ outgoing-access ] [ suppress { all | 

preferential } ] 

undo x25 cug-service 
x25 local-cug cug-number network-cug cug-number [ no-incoming ] [ no-

outgoing ] [ preferential ] 

undo x25 local-cug cug-number 
display x25 cug 

 

3.

 

BRI 128K Leased Line 

 

BRI stands for Basic Rate Interface, which is the basic ISDN configuration. This 
configuration consists of two B-channels that can carry voice or date at a rate of 
64Kbps, and one D-channel, which carries call-control information. The current 
release supports a 128Kbps leased line by combining the two 64Kbps B-channels into 
a single 128Kbps physical channel. 
 
You can use these CLI commands to configure the ISDN 128K leased line: 
 

dialer isdn-leased channel-number 
undo dialer isdn-leased channel-number 
dialer isdn-leased 128k 
undo dialer isdn-leased 128k 
isdn link-mode p2p 
undo isdn link-mode p2p 

 

4.

 

HWPing 

 
HWPing is a tool used for testing the performance of the protocols operating on a 
network. It is an enhancement to the ping function that only allows you to test the 
roundtrip delay (time required for a packet to travel from the local end to a specified 
destination and return to the local end again). HWPing enhances the ping function by 
detecting the state (enabled or disabled) of a DLSW, DHCP, FTP, HTTP, or SNMP 
Server, and testing the response time for each type of service. 
 

http://www.3com.com/ 
Part No.

 10014533

 

Published August 2004 

Summary of Contents for CT1

Page 1: ...ear when you use the display snmp statistics command of the CLI 2 Previously the display ip statistics command would show statistics for both IP and ICMP traffic In this release there is a separate command display icmp statistics to view ICMP traffic information Additionally this release displays the statistics in an improved format 3 This release includes a change in the range of values for the a...

Page 2: ...nt command would fail with insufficient memory error Previously if a combination of eight MIM cards were installed in the 5680 device simultaneously the device would be unable to boot up In earlier releases the system clock would revert back to GMT settings when the router underwent a reboot operation Link Layer Network Protocol In earlier releases the router 5680 would corrupt UDP packets from th...

Page 3: ...nk from MFR to MP In the past the DHCP option commands were not saved with the save command Therefore it was not maintained after a reboot and would need to be re entered The option command now supports values up to 64 bytes Routing Protocol Previously the router would reboot when the user tried to use more than 15 000 BGP routes In the current release the router limits the number of BGP routes to...

Page 4: ...end on a particular route protocol and can run RIP1 RIP2 OSPF etc It does not depend on interesting packets to trigger dial thus the secondary link will start automatically when the primary link disconnects without dialing delay excluding route convergence time You can configure and manage the dynamic routing standby feature using the following CLI commands standby routing group group number undo ...

Page 5: ...for Basic Rate Interface which is the basic ISDN configuration This configuration consists of two B channels that can carry voice or date at a rate of 64Kbps and one D channel which carries call control information The current release supports a 128Kbps leased line by combining the two 64Kbps B channels into a single 128Kbps physical channel You can use these CLI commands to configure the ISDN 128...

Page 6: ...paddress undo destination ip destination port port number undo destination port source interface interface type interface number undo source interface source ip ipaddress undo source ip source port port number undo source port testtype icmpecho udp public udp private tcp public tcp private dlsw dhcp snmpquery ftp http count times undo count times datasize size undo datasize frequency interval undo...

Page 7: ... history records description string undo description send trap all probefailure testcomplete testfailure undo send trap all probefailure testcomplete testfailure hwping agent max requests number undo hwping agent max requests number testenable display hwping history jitter result administrator name operation tag http www 3com com Part No 10014533 Published August 2004 ...

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