
Managing Line Resources
8-3
Supported Media
You can enable the LRM on 10-Mb/s Ethernet, MCT1, HSSI, and other
synchronous interfaces. LRM supports the following synchronous interface
encapsulation methods:
• Point-to-Point Protocol (PPP)
• Bay Networks Standard
• Frame Relay
• ATM DXI
How LRM Works with ST2
The following summarizes the exchange between the ST2 agent and the LRM.
1. The router receives an ST2 connect request.
The ST2 connect request includes a flow specification (flowspec) that
indicates the resources needed to meet the QoS.
2. ST2 passes the flowspec to the LRM.
3. The LRM compares the requested resources with available reservable
bandwidth.
LRM determines reservable bandwidth from configured values described later
in this chapter. It also accounts for any active reserved flows.
4. The LRM either reserves the necessary services or refuses service.
Enabling the Line Resource Manager
Before you can enable the LRM or reserve resources for ST2 traffic, you must first
configure IP and the ST2 agent on a circuit, as described in Configuring ST2
Services.
To enable LRM on an MCT1 line, first go to “Accessing LRM on an MCT1 Line
,”
later in this chapter.
Note: You cannot use line resource management on a line you configured for
PPP multilink.
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