Cisco Unified Border Element (SP Edition) Configuration Guide: Unified Model

Step 1

configure terminal

Router# configure terminal

Enables global configuration mode.

Step 2

sbc service-name

Router(config)# sbc mysbc

Enters the submode of an SBC service.

Step 3

sbe

Router(config-sbc)# sbe

Configures the submode of the SBE entity within a SBC service.

Step 4

codec list name

Router(config-sbc-sbe)# sbc mysbc sbe codec list my_codecs

Creates a codec list.

Step 5

description text

Router(config-sbc-sbe-codec-list)# description Legitimate codes

Adds a description for the specified codec list using a readable text string format.

The no form of this command removes the description.

This description is displayed when the show command is used for this codec list. It is also included for each codec list when a summary of all codec lists is displayed.

Step 6

codec codec-name [ packetization-period packetization-period]

Router(config-sbc-sbe-codec-list)# codec PCMU packetization-period 20

Adds a codec to a codec list, and sets a minimum packetization period (optional) for the codec.

The no form of this command (without the packetization period) removes the named codec from the codec list.

Note If the no form of this command includes the packetization period, only the packetization period for the codec is removed.

Step 7

end

Router(config-sbc-sbe-codec-list)# end

Exits codec-list mode and enters Privileged EXEC mode.

Step 8

show sbc service-name sbe codec-list list-name

Router# show sbc mysbc sbe codec-list my_codecs

Displays detailed information about the codec lists configured on the SBE.

If the list name is omitted, for example, my_codecs, then details are displayed for all codec lists on the SBE.

Step 1

configure terminal

Router# configure terminal

Enables global configuration mode.

Step 2

sbc service-name

Router(config)# sbc mysbc

Enters the submode of an SBC service.

Step 3

sbe

Router(config-sbc)# sbe

Configures the submode of the SBE entity within a SBC service.

Step 4

cac-policy-set policy-set-id

Router(config-sbc-sbe)# cac-policy-set 1

Enters the submode of CAC policy.

Step 5

first-cac-scope scope-name

Router(config-sbc-sbe-cacpolicy)# first-cac-scope global

Configures the scope at which to begin defining limits when performing the admission control stage of policy.

Note The first-cac-scope definition is only relevant if the table type configured by the first-cac-table command is a Limit table. In that case, the scope of the first-cac-table is determined by first-cac-scope. If the first-cac-table is a Policy Set table, the first-cac-scope is ignored and defaults to global.

The scope-name argument configures the scope at which limits should be initially defined. Possible values are:

• adj-group
• call
• category
• dst-account
• dst-adj-group
• dst-adjacency
• dst-number
• global
• src-account
• src-adj-group
• src-adjacency
• src-number

Features can be enabled or disabled per adjacency group through CAC configuration the same way this is done per individual adjacencies.

Step 6

first-cac-table table-name

Router(config-sbc-sbe-cacpolicy)# first-cac-table first_policy_table

Configures the name of the first policy table to process when performing the admission control stage of policy.

Step 7

cac-table table-name

Router(config-sbc-sbe-cacpol icy)# cac-table first_policy_table

Enters the mode for configuration of an admission control table (creating one if necessary) within the context of an SBE policy set.

Step 8

table-type {policy-set | limit {list of limit tables}}

Router(config-sbc-sbe-cacpolicy-cactable)# table-type policy-set

Configures the table type of a CAC table within the context of an SBE policy set.

The list of limit tables argument controls the syntax of the match-value fields of the entries in the table. Possible available Limit tables are:

• account—Compare the name of the account.
• adj-group—Compare the name of the adjacency group.
• adjacency—Compare the name of the adjacency.
• all—No comparison type. All events match this type.
• call-priority—Compare with call priority.
• category—Compare the number analysis assigned category.
• dst-account—Compare the name of the destination account.
• dst-adj-group—Compare the name of the destination adjacency group.
• dst-adjacency—Compare the name of the destination adjacency.
• dst-prefix—Compare the beginning of the dialed digit string.
• event-type—Compare with CAC policy event types.
• src-account—Compare the name of the source account.
• src-adj-group—Compare the name of the source adjacency group.
• src-adjacency—Compare the name of the source adjacency.
• src-prefix—Compare the beginning of the calling number string.

Note For Limit tables, the event or message or call matches only a single entry.

Features can be enabled or disabled per adjacency group through CAC configuration the same way this is done per individual adjacencies. The adj-group table type matches on either source or destination adjacency group.

When the policy-set keyword is specified, use the cac-scope command to configure the scope within each entry at which limits are applied in a CAC Policy Set table.

Note For Policy Set tables, the event or call or message is applied to all entries in this table.

Step 9

entry entry-id

Router(config-sbc-sbe-cacpolicy-cactable)# entry 1

Enters the mode to create or modify an entry in an admission control table.

Step 10

cac-scope {list of scope options}

Router(config-sbc-sbe-cacpolicy-cactable-entry)# cac-scope call

Configures the scope within each of the entries at which limits are applied in a policy set table.

• list of scope options—Specifies one of the following strings used to match events:

– account —Events that are from the same account.

– adjacency —Events that are from the same adjacency.

– adj-group —Events that are from members of the same adjacency group.

– call —Scope limits are per single call.

– category —Events that have same category.

– dst-account —Events that are sent to the same account.

– dst-adj-group —Events that are sent to the same adjacency group.

– dst-adjacency —Events that are sent to the same adjacency.

– dst-number —Events that have same destination.

– global —Scope limits are global

– src-account —Events that are from the same account.

– src-adj-group —Events that are from the same adjacency group.

– src-adjacency —Events that are from the same adjacency.

– src-number —Events that have the same source number.

– sub-category —The limits specified in this scope apply to all events sent to or received from members of the same subscriber category.

– sub-category-pfx —The limits specified in this scope apply to all events sent to or received from members of the same subscriber category prefix.

– subscriber —The limits specified in this scope apply to all events sent to or received from individual subscribers (a device that is registered with a Registrar server).

Step 11

action [next-table goto-table-name | cac-complete]

Router(config-sbc-sbe-cacpolicy-cactable-entry)# action cac-complete

Configures the action to perform after this entry in an admission control table. Possible actions are:

• Identify the next CAC table to process using the next-table keyword and the goto-table-name argument.
• Stop processing for this scope using the cac-complete keyword.

Step 12

codec-restrict-to-list list-name

Router(config-sbc-sbe-cacpolicy-cactable-entry)# codec-restrict-to-list my_codecs

Configures CAC to restrict the codecs used in signaling a call to the set of codecs provided in the named list.

If a codec list is empty, all codecs recognized by the SBE are allowed.

The no form of this command, or not setting this command, allows any recognized codecs to be used without restrictions.

Note This command replaces any codec list that was set up by an earlier CAC entry. To clear all restrictions from an earlier CAC entry, you must configure a codec-restrict-to-list list-name, where list-name is the name of a list containing no codecs.

Step 13

complete

Router(config-sbc-sbe-cacpolicy)# complete

Completes the cac-policy.

Step 14

end

Router(config-sbc-sbe-cacpolicy)# end

Exits the cac-policy-set configuration mode and enters Privileged EXEC mode.

Step 15

show sbc service-name sbe cac-policy-set id table name entry entry

Router# show sbc mysbc sbe cac-policy-set 1 table standard_policy_list entry 1

Displays detailed information for a specific entry in a CAC policy table, including any restricted codecs.

Step 1

configure terminal

Router# configure terminal

Enables the global configuration mode.

Step 2

sbc service-name

Router(config)# sbc mysbc

Enters the submode of an SBC service.

Step 3

sbe

Router(config-sbc)# sbe

Configures the submode of the SBE entity within an SBC service.

Step 4

codec list name

Router(config-sbc-sbe)# codec list my_codecs

Creates a codec list.

Step 5

description text

Router(config-sbc-sbe-codec-list)# description Legitimate codes

Adds a description for the specified codec list using a readable text string format.

The no form of this command removes the description.

This description is displayed when the show command is used for this codec list. It is also included for each codec list when a summary of all codec lists is displayed.

Step 6

codec codec-name [ packetization-period packet-period [priority priority-value ] | priority priority-value [packetization-period packet-period ]]

Router(config-sbc-sbe-codec-list)#codec G723 priority 1

Adds a codec to a codec list, sets a minimum packetization period (optional) for the codec, and sets a priority for the codec that is used for reordering.

The default codec preference priority is 100

A smaller priority value indicates a higher priority, for example if the codec preference value is 1, which is the highest priority and places the codec at the top of the list.

Using the no form of this command (without the packetization period) removes the named codec from the codec list.

Note If the no form of this command includes the packetization period, only the packetization period for the codec is removed.

Step 7

end

Router(config-sbc-sbe-codec-list)# end

Exits the codec-list mode and enters the Privileged EXEC mode.

Step 8

show sbc service-name sbe codec-list list-name

Router# show sbc mysbc sbe codec-list my_codecs

Displays detailed information about the codec lists configured on the SBE.

If the list name for example, my_codecs, is omitted, details are displayed for all the codec lists on the SBE.

Step 1

configure terminal

Router# configure terminal

Enables the global configuration mode.

Step 2

sbc service-name

Router(config)# sbc mysbc

Enters the submode of an SBC service.

Step 3

sbe

Router(config-sbc)# sbe

Configures the submode of the SBE entity within a SBC service.

Step 4

cac-policy-set policy-set-id

Router(config-sbc-sbe)# cac-policy-set 1

Enters the submode of CAC policy.

Step 5

first-cac-table table-name

Router(config-sbc-sbe-cacpolicy)# first-cac-table first_policy_table

Configures the name of the first policy table to processed when performing the admission control stage of the policy.

Step 6

cac-table table-name

Router(config-sbc-sbe-cacpolicy)# cac-table first_policy_table

Enters the cactable mode for configuring an admission control table (creating one, if necessary) within the context of an SBE policy set.

Step 7

table-type {policy-set | limit {list of limit tables}}

Router(config-sbc-sbe-cacpolicy-cactable)# table-type policy-set

Configures the table type of a CAC table within the context of an SBE policy set.

The list of limit tables argument controls the syntax of the match-value fields of the entries in the table. Possible available Limit tables are:

• account—Compare the name of the account.
• adj-group—Compare the name of the adjacency group.
• adjacency—Compare the name of the adjacency.
• all—No comparison type. All events match this type.
• call-priority—Compare with call priority.
• category—Compare the number analysis assigned category.
• dst-account—Compare the name of the destination account.
• dst-adj-group—Compare the name of the destination adjacency group.
• dst-adjacency—Compare the name of the destination adjacency.
• dst-prefix—Compare the beginning of the dialed digit string.
• event-type—Compare with CAC policy event types.
• src-account—Compare the name of the source account.
• src-adj-group—Compare the name of the source adjacency group.
• src-adjacency—Compare the name of the source adjacency.
• src-prefix—Compare the beginning of the calling number string.

Note For Limit tables, the event or message or call matches only a single entry.

Features can be enabled or disabled per adjacency group through CAC configuration the same way this is done per individual adjacencies. The adj-group table type matches on either source or destination adjacency group.

When the policy-set keyword is specified, use the cac-scope command to configure the scope within each entry at which limits are applied in a CAC Policy Set table.

Note For Policy Set tables, the event or call or message is applied to all entries in this table.

Step 8

entry entry-id

Router(config-sbc-sbe-cacpolicy-cactable)# entry 1

Enters the entry mode to create or modify an entry in an admission control table.

Step 9

codec-preference-list list-name

Router(config-sbc-sbe-cacpolicy-cactable-entry)# codec-preference-list my_codecs

Configures the CAC to set preferences for the codecs in the codecs list.

Using the no form of this command, or not setting this command, allows the recognized codecs, if any, to be used without any usage preference.

Note This command replaces the codec-preference-list, if any, set up by an earlier CAC entry. To clear all the the preferences from an earlier CAC entry, configure a codec-preference-list list-name, where list-name is the name of a list containing no codecs.

Step 10

end

Router(config-sbc-sbe-cacpolicy)# end

Exits the cac-policy-set configuration mode and enters the Privileged EXEC mode.

Step 11

show sbc service-name sbe cac-policy-set id table name entry entry

Router# show sbc mysbc sbe cac-policy-set 1 table standard_policy_list entry 1

Displays detailed information pertaining to a specific entry in a CAC policy table, including codecs with preferences, if any.