Cisco Systems 78-11741-02 Configuring IP over WANs, Setting the TCP Outgoing Queue Size, IPC-115

Configuring IP Services

Configuring IP over WANs

Setting the TCP Outgoing Queue Size

The default TCP outgoing queue size per connection is 5 segments if the connection has a TTY associated with it (like a Telnet connection). If no TTY connection is associated with it, the default queue size is 20 segments. To change the 5-segment default value, use the following command in global configuration mode:

Command	Purpose
Router(config)# ip tcp queuemax packets	Sets the TCP outgoing queue size.

Configuring IP over WANs

You can configure IP over X.25, Switched Multimegabit Data Service (SMDS), Frame Relay, and dial-on-demand routing (DDR) networks. When configuring IP over X.25, SMDS, or Frame Relay, configure the address mappings as described in the appropriate chapters of the Cisco IOS Wide-Area Networking Configuration Guide. For DDR, refer to the “Preparing to Configure DDR” chapter of the Cisco IOS Dial Technologies Configuration Guide publication.

Configuring the MultiNode Load Balancing Forwarding Agent

The MultiNode Load Balancing (MNLB) Forwarding Agent is the Cisco IOS-based packet redirector component of the MNLD Feature Set for LocalDirector, a product in the Cisco family of load balancing solutions.

The Forwarding Agent discovers the destination of specific connection requests and forwards packets between the client and the chosen destination. When a Forwarding Agent receives a connection request, the request is forwarded to the MNLB services manager, the LocalDirector-based component of the MNLD Feature Set for LocalDirector. The services manager makes the load-balancing decision and sends the Forwarding Agent the optimal destination. After the destination is specified, session data is forwarded directly to the destination by the Forwarding Agent, without further services manager participation. There is no limit to the number of Forwarding Agents that can be configured in the MNLD Feature Set for LocalDirector.

The MNLD Feature Set for LocalDirector comprises hardware and software that runs on multiple network components. The services manager runs on the Cisco LocalDirector chassis and makes the load-balancing decisions. The Forwarding Agents run on Cisco IOS router and switch platforms and forward packets to and from the selected destination. Separating the decision-making and packet-forwarding tasks enables much faster packet throughput. The underlying Cisco architecture, ContentFlow architecture, enables the following features:

•High availability

•Unbounded scalability

•Application-aware balancing

•No single point of failure

•Unmatched performance

Cisco IOS IP Configuration Guide

IPC-115