Link Aggregation Status; Configuring A Demux Card; Overview; Configuration - Cisco ASR 5000 Administration Manual

System Settings

Link Aggregation Status

To check the status of link aggregation, use the following commands:
• show port table
• show port info slot/port

Configuring a Demux Card

You can dedicate a packet processing card to function as a demux card. Demux is a generic term for signal
demultiplexing tasks. These are the tasks are responsible for parsing call setup (signaling packets) and
distributing the calls internally. For this reason there almost as many tasks running on a demux card as there
are services.
The vpnmgr tasks responsible for each context also run on the demux card. The number of vpnmgr tasks
correspond to the number of contexts. A vpnmgr is responsible for IP address assignment to mobile equipment,
IP routing (such as BGP, OSPF), as well as a variety of associated tasks.

Overview

Designating a packet processing card as a demux card frees up resources for session handling, which has the
potential to increase system throughput. However, there is no increased support in total subscriber capacity
due to other system resource restrictions.
This feature is disabled by default and can be enabled via the Global Configuration mode require demux
card command. It is only supported for a limited number of products. Refer to the product Administration
Guide for additional information.
Important

Configuration

To configure a packet processing card as a demux card enter the following CLI commands:
configue
require demux card
end

Configuring Flow Control on XGLCs

To minimize the possibility of a port shutdown on an XGLC, you must enable flow control on the XGLC
port. If an XGLC locks down due to a port shutdown, the only method for recovery is to reboot the card via
the Exec mode card reboot command.
On an ASR 5000 one of the packet processing cards must be configured as a demux card in order for
Bidirecitonal Forwarding Detection (BFD) to function.
ASR 5000 System Administration Guide, StarOS Release 21.1
Link Aggregation Status
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