-
Cisco IOS Release 12.0 Dial Solutions Command Reference
-
About This Manual
-
Using Cisco IOS Software
- Part 1: Dial-In Port Setup
- Part 2: Dial-In Terminal Service & Remote Node Config
- Part 3: Dial-on-Demand Routing
- Part 4: Dial Backup
- Part 5: NASI Client Commands
- Part 6: Large-Scale Dial Solutions
- Part 7: Cost-Control Solutions
- Part 8: Virtual Private Dialup Networks
- Part 9: Other Network Traffic on ISDN Channels
- Part 10: Dial-Related Addressing Services
- Part 11: Appendixes
-
Index
-
Table Of Contents
Multichassis Multilink PPP Commands
Multichassis Multilink PPP Commands
This chapter describes the commands used to configure Multichassis Multilink PPP (MMP).
For information about configuring MMP, see the "Configuring Multichassis Multilink PPP" chapter in the Dial Solutions Configuration Guide.
sgbp group
To define a named stack group and make this router a member of that stack group, use the sgbp group global configuration command.
sgbp group name
Syntax Description
Default
Disabled. No stack group name is provided.
Command Mode
Global configuration
Usage Guidelines
This command first appeared in Cisco IOS Release 11.2.
Define the same stack group name across all the stack members.
Example
The following example makes this system a member of the stack group named stackq:
sgbp group stackqRelated Commands
You can use the master indexes or search online to find documentation of related commands.
sgbp member
To specify the host name and IP address of a router or access server that is a peer member of a stack group, use the sgbp member global configuration command.
sgbp member peer-name [peer-ip-address]
Syntax Description
Default
Disabled. When enabled, names and IP addresses of peer routers or access servers in the stack group are not provided.
Command Mode
Global configuration
Usage Guidelines
This command first appeared in Cisco IOS Release 11.2.
Use this command to specify the names of peer hosts (other hosts, not the one being configured) in the specified stack group after you have entered the sgbp group command.
Example
The following example configures the current router to recognize the three routers (jimi, janis, and jerry) as peer members of the rockstar stack group:
sgbp group rockstarsgbp member jimi 10.69.5.2sgbp member janis 172.16.6.3sgbp member jerry 192.165.15.4Related Commands
You can use the master indexes or search online to find documentation of related commands.
sgbp ppp-forward
To enable forwarding of PPP calls—in addition to Multilink PPP calls—to the winner of the SGBP bid, use the sgbp ppp-forward global configuration command.
sgbp ppp-forward
Syntax Description
This command has no arguments and keywords.
Default
This command is disabled by default.
Command Mode
Global configuration
Usage Guidelines
This command first appeared in Cisco IOS Release 11.3.
When this command is enabled, both PPP and PPP multilink calls are projected to the winner of the SGBP bid. By default, only Multilink PPP calls are forwarded.
Example
The following partial example enables forwarding of PPP calls, as well as MLP calls, to the winner of the SGBP bidding:
sgbp ppp-forwardRelated Commands
You can use the master indexes or search online to find documentation of related commands.
sgbp seed-bid
To set the bidding level that a stack group member can bid with for a bundle, use the sgbp seed-bid global configuration command.
sgbp seed-bid {default | offload | forward-only | bid}
Syntax Description
Default
The default keyword; no bid-level integer value is set.
Command Mode
Global configuration
Usage Guidelines
This command first appeared in Cisco IOS Release 11.2.
In the case of equivalent stack group members stacked to receive calls in a rotary group across multiple PRIs, use sgbp seed-bid default across all stack members. The stack member that receives the first call for a certain user always wins the bid and hosts the master bundle interface. All subsequent calls to the same user received by another stack member will project to this stack member. If the multiple calls come in concurrently over multiple stack members, the SGBP tie-breaking mechanism will break the tie.
To leverage the relative higher power of one stack member over another, you can set the designated stack member (of higher CPU power) as offload server with sgbp seed-bid offload. The bid that is sent is the precalibrated per-platform bid approximating the CPU power, minus the bundle load. In this case, the offload server hosts the master bundle. All calls from other stack members get projected to this stack member. One or more offload servers can be defined—if the bids are equal, the SGBP tie-breaking mechanism will break the tie.
The interfaces that received the calls are projected to the master bundle interface and are considered children of the master bundle interface for the call. See the output of the show ppp multilink for an example of master bundle interface (shown as "Master link") and the children of it.
You can also manually designate bid values with the sgbp seed-bid command. This value overrides the default or offload setting. The bid sent out is the user-configured value minus the bundle load. The bundle load is defined as the number of active bundles on the stack member. In effect, the more current active bundles on a router, the lower its bid for an additional bundle.
If you have assorted or exactly the same platforms and for some reason want to designate one or more as offload servers, you can manually set the bid value to be significantly higher than the rest. For example, you might use sgbp seed-bid 9999. To determine the initial bid value associated with your particular platform, use show sgbp command. This method allows you to manually designate the bid values when you have assorted platforms and want to designate one or more platforms as offload servers; for example, one Cisco 4700 (given the highest seed-bid), two Cisco 4000s and one Cisco 7000.
To check the bid value currently assigned on the system, use the show sgbp queries command.
Related Commands
You can use the master indexes or search online to find documentation of related commands.
sgbp group
sgbp member
show sgbp queriesshow sgbp
To display the status of the stack group members, use the show sgbp EXEC command.
show sgbp
Command Mode
EXEC
Usage Guidelines
This command first appeared in Cisco IOS Release 11.2.
Sample Display
The following is sample output from the show sgbp command:
systema# show sgbpGroup Name: stack State: 0 Ref: 0xC07B060Member Name: systemb State: ACTIVE Id: 1Ref: 0xC14256FAddress: 1.1.1.1 Tcb: 0x60B34538Member Name: systemc State: ACTIVE Id: 2Ref: 0xA24256DAddress: 1.1.1.2 Tcb: 0x60B34439Member Name: systemd State: IDLE Id: 3Ref: 0x0Address: 1.1.1.3 Tcb: 0x0Table 132 describes the fields in the show sgbp command output display.
Table 132
Show SGBP Command Output Field Description
show sgbp queries
To display the current seed bid value, use the show sgbp queries EXEC command.
show sgbp queries
Command Mode
EXEC
Usage Guidelines
This command first appeared in Cisco IOS Release 11.2.
Sample Display
The following example shows a bid of 50 from this system. Peers queried the system for the bid, the bid was accepted, and a connection was opened from a peer in the stack group:
systema# show sgbp queriesSeed bid: default, 50Bundle: book State: Query_from_peers OurBid: 501.1.1.2 State: Open_from_peer Bid: 050 Retry: 0Table 133 describes the fields in the show sgbp queries command sample display output.
Table 133 Show SGBP Queries Command Output Field Descriptions