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Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
OL-2239-05
Chapter 1 Overview of Cisco uBR7200 Series Software
cops tcp window-size
ISDN Multiple Switch Types
The Cisco IOS software provides an enhanced
Multiple ISDN Switch Types
feature that allows you to
apply an ISDN switch type to a specific ISDN interface and to configure more than one ISDN switch
type per router. This feature allows both ISDN BRI and ISDN PRI to run simultaneously on platforms
that support both interface types.
For configuration information, refer to the chapter titled
Setting Up Basic ISDN Service”
in the
Cisco
IOS Dial Services Configuration Guide: Terminal Services
, Release 12.1
on Cisco.com.
ISDN NFAS
ISDN Non-Facility Associated Signalling (NFAS) allows a single D channel to control multiple PRI
interfaces. A backup D channel can also be configured for use when the primary NFAS D channel fails.
For configuration information, refer to the chapter titled
“Configuring ISDN Special Signalling”
in the
Cisco IOS Dial Services Configuration Guide: Terminal Services
, Release 12.1
on Cisco.com.
Microsoft Point-to-Point Compression (MPPC)
In March of 1997, Microsoft Corporation introduced the Microsoft Point-to-Point Compression (MPPC)
scheme as a means of representing arbitrary PPP packets in a compressed form. MPPC was ratified by
the Internet Engineering Task Force (IETF) and is known as RFC 2118. The Windows 95 client software
supports both MPPC and LZS Stacker compression, whereas the Microsoft NT server and Windows
2000 only support MPPC, which is negotiated during the Compression Control Protocol (CCP) process.
To enable MPPC compression on access servers, you need to be running Cisco IOS Software version
11.3T or later. Refer to these two documents on Cisco.com for additional information:
•
MPPC Compression on Access Servers
•
Microsoft Point-to-Point Compression (MPPC)
MLPPP Support
The Cisco IOS Multilink Point-to-Point Protocol (MLPPP) feature is now supported for selected line
cards and port adapters on the Cisco uBR7100 series and the Cisco uBR7200 Series, which share the
same MLPPP code as the Cisco 7200 series. There is no new hardware or software for MLPPP in this
release.
Note
MLPPP combines one or more physical interfaces into a virtual “bundle” interface. The bandwidth of
the bundle interface is equal to the sum of the component links’ bandwidth. This allows service providers
to make the step from T1 and E1 lines to affordable T3 and E3 speeds.
MLPPP is configured not on a cable interface, but on the T1/E1 link.
Line Cards and Port Adapters Supporting MLPPP on the Cisco uBR7200 Series
Table 15
lists the line cards and port adapters on the Cisco uBR7200 Series, in conjunction with the
applicable network processing engine (NPE), that are supported for MLPPP at the time Cisco IOS
Release 12.3(13a)BC was released.
