Ip-Ran Implementation Limitations And Restrictions - Cisco MWR 1941-DC - 1941 Mobile Wireless Router Software Configuration Manual

Limitations and Restrictions

IP-RAN Implementation Limitations and Restrictions

The following list of restrictions applies when implementing the MWR 1941-DC router in an IP-RAN.
Cisco IOS Software Features not Supported on the MWR 1941-DC Router
The Cisco MWR 1941-DC router requires a special version of Cisco IOS software. Not all Cisco IOS
software features can be used with the Cisco MWR 1941-DC router as the core routing is handled by the
network processor. A list of supported features is included in the
on page
MWR 1941-DC router:
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Upgrading the VWIC-2MFT-T1-DIR Microcode
When upgrading the image on your Cisco MWR 1941-DC router, power cycle the router or perform a
microcode reload on the VWIC-2MFT-T1-DIR to ensure that the firmware for the VWIC-2MFT-T1-DIR
is updated during the upgrade.
Disabling PPP Multiplexing
To fully disable PPP multiplexing (PPPMux), issue the no ppp mux command on the T1 interfaces of
the routers at both ends of the T1 link. If PPP multiplexing remains configured on one side of the link,
that side will offer to receive PPP multiplexed packets.
MLP LFI Support
MLP LFI is not supported by the Cisco MWR 1941-DC router. Therefore, MLP LFI must be disabled on
peer devices connecting to the Cisco MWR 1941-DC router T1 MLP connections.
ACFC and PFC Support on PPP Interfaces
If upgrading to Cisco IOS Release 12.2(8)MC2c or later for the ACFC and PFC support on PPP
interfaces, ensure that you upgrade the MGX-RPM-1FE-CP back card image first. After doing so,
immediately upgrade all MWR 1941-DC routers connected to the MGX-RPM-1FE-CP back card.
Cisco MWR 1941-DC Mobile Wireless Edge Router Software Configuration Guide
1-10
1-4. The following standard Cisco IOS software features are not supported on the Cisco
Security Access Control Lists
MPLS
802.1Q VLANs
Frame Relay (FR)
MLP LFI
ATM
Use of additional WICs. The only supported WIC is the VWIC-2MFT-T1DIR/VWIC-2MFT-E1DIR.
(IP-RAN implementation only.)
Chapter 1 Overview of the Cisco MWR 1941-DC Router
"Cisco IOS Software Features" section
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