|
Command or Action |
Purpose |
|
enable
Example:
Router> enable
|
Enables privileged EXEC mode.
- Enter your password if prompted.
|
|
configure terminal
Example:
Router# configure terminal
|
Enters global configuration mode. |
|
ip routing
Example:
Router(config)# ip routing
|
Enables IP routing. |
|
ip cef
Example:
Router(config)# ip cef
|
Enables Cisco Express Forwarding.
Note |
For the Cisco 7500, enter ip cef distributed. |
|
|
Do one of the following:
- interface type number
-
-
-
- interface type number . subinterface-number
- multipoint | point-to-point]
Example:
Router(config)# interface serial 0
Example:
Example:
Example:
Router(config)# interface serial 1.1 multipoint
|
Specifies the interface type and number and enters interface configuration mode.
- Physical interfaces are multipoint subinterfaces by default.
or Specifies the interface type and subinterface and enters subinterface configuration mode.
- Once you create a specific type of subinterface (point-to-point or multipoint), you cannot change it without a reload. To change it, you must either reload the router or create another subinterface.
|
|
encapsulation frame-relay [cisco |ietf]
Example:
Router(config-if)# encapsulation frame-relay
|
Enables Frame Relay encapsulation.
- The default encapsulation method is cisco.
|
|
ip address ip-address mask [secondary]
Example:
Router(config-if)# ip address 10.1.1.1 255.0.0.0
|
Sets a primary IP address for the interface.
- The optional secondary keyword specifies that the configured address is a secondary IP address. If this keyword is omitted, the configured address is the primary IP address.
|
|
frame-relay map protocol protocol-address {dlci| vc-bundle vc-bundle-name} [broadcast] [ietf| cisco]
Example:
Router(config-if)# frame-relay map ip 10.2.2.2 vc-bundle MAIN-1
|
(Optional) Maps between a next-hop protocol address and a data-link connection identifier (DLCI) destination address, and creates a PVC bundle if it does not already exist.
- The protocol-address is the destination IP address.
- The frame-relay map command is required for multipoint interfaces if Inverse ARP has been disabled or is not supported at the other end of the connection.
|
|
frame-relay vc-bundle vc-bundle-name
Example:
Router(config-if)# frame-relay vc-bundle MAIN-1
|
Creates a PVC bundle if it does not already exist, and enters Frame Relay VC-bundle configuration mode. |
|
encapsulation [cisco | ietf]
Example:
Router(config-fr-vcb)# encapsulation ietf
|
(Optional) Overrides the encapsulation type configured on the interface and configures the Frame Relay encapsulation type for the PVC bundle.
- This command is available only when the PVC bundle is configured on a point-to-point subinterface.
|
|
match {dscp dscp-value| precedence precedence-value}
Example:
Router(config-fr-vcb)# match precedence 5
|
Establishes the type of matching to use between incoming packet headers and PVC-bundle members.
- The default match type is precedence.
|
|
pvc dlci [vc-name]
Example:
Router(config-fr-vcb)# pvc 100 1a
|
Creates a PVC-bundle member and enters Frame Relay VC-bundle-member configuration mode.
- The vc-name argument is an optional name that can be used for referring to the PVC.
|
|
class name
Example:
Router(config-fr-vcb-vc)# class premium
|
(Optional) Assigns a map class to the PVC-bundle member defined in the previous step. |
|
Do one of the following:
- precedence {level | other}
-
-
-
- dscp {level | other}
Example:
Router(config-fr-vcb-vc)# precedence 6-7
Example:
Example:
Example:
Router(config-fr-vcb-vc)# dscp other
|
(Optional) Enters the mapped service level or range for the PVC-bundle member.
- The precedence command is available when the PVC-bundle match type is set to precedence.
- The precedence range is from 0 to 7.
- The dscp command is available when the PVC-bundle match type is set to dscp.
- The dscp range is from 0 to 63.
- The other keyword is used to designate a PVC to handle all the remaining levels that have not been assigned to other PVCs in the bundle.
- Critical non-IP traffic will automatically use precedence level 0.
|
|
bump {explicit level | implicit | traffic}
Example:
Router(config-fr-vcb-vc)# bump explicit 7
|
(Optional) Specifies the bumping rule for the PVC-bundle member.
- The default bumping rule is implicit bumping.
- Use the explicit level option to specify the service level to which traffic on this PVC will be bumped if the PVC goes down. In that event, the traffic will be directed to a PVC mapped with the service level configured here. If the PVC that picks up and carries the traffic also goes down, the traffic is subject to the bumping rules for that PVC. You can specify only one service level for bumping.
- The PVC-bundle member accepts bumped traffic by default when the PVC-bundle match type is precedence. To configure the PVC to reject bumped traffic from another PVC-bundle member, use the no bump traffic command.
|
|
protect {group | vc}
Example:
Router(config-fr-vcb-vc)# protect group
|
(Optional) Specifies the protection rule for the PVC-bundle member.
- By default, the PVC-bundle member is not protected.
- If you use the vc keyword, the PVC bundle goes down whenever this PVC goes down.
- If you use the group keyword, the PVC bundle goes down when the last PVC in the protected group goes down.
|
|
inarp
Example:
Router(config-fr-vcb-vc)# inarp
|
(Optional) Enables Inverse ARP for the PVC-bundle member.
- By default, Inverse ARP traffic uses the PVC configured for precedence level 6 or DSCP level 63.
|
|
end
Example:
Router(config-fr-vcb-vc)# end
|
Exits to privileged EXEC mode. |
|
Configure the PVC bundle on the peer router.
|
(Optional) While it is not necessary to configure a PVC bundle on the peer router, it is recommended that you do so for applications that rely on communications on the same PVC (such as TCP header-compression.) |