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Chanellized E1

Hello Everyone,


'm trying to create additional channel group in the 7206 router and here's the messages I got!

%Insufficient resources to create channel group

I would like to know if this is related to memory problem or is there any work around i need to do.

I also attached the sh ver output for reference.

Cisco Internetwork Operating System Software

IOS (tm) 7200 Software (C7200-DS-M), Version 12.0(5)XE6, EARLY DEPLOYMENT RELEAS


TAC:Home:SW:IOS:Specials for info

Copyright (c) 1986-1999 by cisco Systems, Inc.

Compiled Thu 30-Dec-99 07:26 by htseng

Image text-base: 0x60008900, data-base: 0x6152E000

ROM: System Bootstrap, Version 12.1(20000824:081033) [dbeazley-cosmos_e_LATEST 1


BOOTFLASH: 7200 Software (C7200-BOOT-M), Version 12.0(13)S, EARLY DEPLOYMENT REL


BCC-7200 uptime is 3 weeks, 1 day, 6 hours, 2 minutes

System returned to ROM by power-on at 02:01:52 MANILA Tue Oct 14 2003

System restarted at 16:07:44 MANILA Sat Dec 6 2003

System image file is "c7200-ds-mz.120-5.XE6"

cisco 7206VXR (NPE300) processor with 253952K/40960K bytes of memory.

R7000 CPU at 262Mhz, Implementation 39, Rev 2.1, 256KB L2, 2048KB L3 Cache

6 slot VXR midplane, Version 2.0

Last reset from power-on

Channelized E1, Version 1.0.

Bridging software.

X.25 software, Version 3.0.0.

Primary Rate ISDN software, Version 1.1.

1 FastEthernet/IEEE 802.3 interface(s)

136 Serial network interface(s)

16 Channelized E1/PRI port(s)

125K bytes of non-volatile configuration memory.

20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).

46976K bytes of ATA PCMCIA card at slot 1 (Sector size 512 bytes).

4096K bytes of Flash internal SIMM (Sector size 256K).

Configuration register is 0x2102

VIP Purple

Re: Chanellized E1


are you using a PA-MC-8E1 ? You might have reached the limit of 128 channel groups on this PA. AFAIK this is a hardware limit and not a memory problem. If you have a lot of subrate circuits, such as 64k circuits into a channelized E1, it's possible to hit that limit before the card is fully populated.

Here is what Cisco says about the PA-MC-8E1:


Rules for determining the allowable number of PRI groups per port adapter:

Each port can have a maximum of 1 PRI group

Each PRI group can have 1 - 31 timeslots configured

The allowable number of PRI groups per port adapter is governed by the maximum number of timeslots used per PRI group

Example 1: PA-MC-8E1 configured with:

1 PRI group of 10 timeslots

1 PRI group of 20 timeslots

1 PRI group of 15 timeslots

1 PRI group of 31 timeslots

1 PRI group of 31 timeslots

Total number of timeslots: 107

107 timeslots is fewer than the 128 timeslots maximum allowable per port adapter. In this case the 5 PRI groups/5 ports can be used for the PA-MC-8E1. (Another 21 timeslots could be configured, for maximum of 128.)

Example 2: PA-MC-8E1 configured with 5 PRI groups of 31 timeslots = 155 timeslots.

This example is not valid because 155 timeslots exceeds the 128 timeslots allowable.


Note The maximum number of channel groups per each 8-port multichannel E1 port adapter is 128.