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I've got 1603 routers which were running a 256kbps leased line, i've
now upgraded the line to 1mb, i've got about 10 terminal server
connections over the line and am intermitently getting dropped
sessions

is the 1603 up to running a 1mb line or should i be looking for a more
powerful router?

Regards

Paul

Paul,

You may find the Cisco Product Advisor helpful:

http://tools.cisco.com/GCT/PCTPST/index.jsp

Sincerely,

Brad Reese
BradReese.Com Cisco Resource Center
United Kingdom: 44-20-70784294
U.S. Toll Free: 877-549-2680
International: 828-277-7272
Fax: 775-254-3558
Website: http://www.BradReese.Com/

"paul tomlinson" <> wrote in message
news: om...
> I've got 1603 routers which were running a 256kbps leased line, i've
> now upgraded the line to 1mb, i've got about 10 terminal server
> connections over the line and am intermitently getting dropped
> sessions
>
> is the 1603 up to running a 1mb line or should i be looking for a more
> powerful router?
>
> Regards
>
> Paul

It's fine. We have many 2Mbps connections running on 1603's without any
problems.

post output of

sh run

sh interface

sh int stat

sh ip traffic

milton#sh int
BRI0 is up (spoofing), line protocol is up (spoofing)
Hardware is BRI
Description: *** 01908630572 ***
Internet address is 10.44.20.1/24
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation PPP, loopback not set
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 6 interface resets
0 output buffer failures, 0 output buffers swapped out
23 carrier transitions
BRI0:1 is down, line protocol is down
Hardware is BRI
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation PPP, loopback not set, keepalive set (10 sec)
LCP Closed, multilink Closed
Closed: IPCP, CDPCP
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
BRI0:2 is down, line protocol is down
Hardware is BRI
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation PPP, loopback not set, keepalive set (10 sec)
LCP Closed, multilink Closed
Closed: IPCP, CDPCP
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
Ethernet0 is up, line protocol is up
Hardware is QUICC Ethernet, address is 0050.0f0d.029e (bia 0050.0f0d.029e)
Description: **** Local Lan at milton keynes ***
Internet address is 10.44.1.251/24
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, rely 255/255, load 1/255
Encapsulation ARPA, loopback not set, keepalive set (10 sec)
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 16000 bits/sec, 15 packets/sec
5 minute output rate 10000 bits/sec, 14 packets/sec
3277783 packets input, 1217939123 bytes, 2 no buffer
Received 1053902 broadcasts, 0 runts, 1 giants, 2 throttles
1 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 input packets with dribble condition detected
2522221 packets output, 502500944 bytes, 0 underruns
0 output errors, 31563 collisions, 2 interface resets
0 babbles, 0 late collision, 11457 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Serial0 is up, line protocol is up
Hardware is QUICC Serial
Description: *** NXUK9230 TO elland ****
Internet address is 10.44.10.5/30
MTU 1500 bytes, BW 512000 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 128 drops; input queue 0/75, 0 drops
5 minute input rate 7000 bits/sec, 14 packets/sec
5 minute output rate 13000 bits/sec, 14 packets/sec
2515355 packets input, 468509437 bytes, 0 no buffer
Received 103787 broadcasts, 0 runts, 0 giants, 0 throttles
2078 input errors, 1797 CRC, 82 frame, 0 overrun, 0 ignored, 104 abort
2519865 packets output, 1063566474 bytes, 0 underruns
0 output errors, 0 collisions, 17 interface resets
0 output buffer failures, 0 output buffers swapped out
160 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up

milton# sh run
Building configuration...

Current configuration:
!
version 11.2
service password-encryption
service udp-small-servers
service tcp-small-servers
!
hostname milton
!
enable password 7 094F471A1A0A
!
username elland password 7 121A0C041104
username bt_dis password 7 08234F4F5D4B54
ip address-pool local
isdn switch-type basic-net3
!
interface Ethernet0
description **** Local Lan at milton keynes ***
ip address 10.44.1.251 255.255.255.0
!
interface Serial0
description *** NXUK9230 TO elland ****
ip address 10.44.10.5 255.255.255.252
no ip route-cache
bandwidth 512000
!
interface BRI0
description *** 01908630572 ***
ip address 10.44.20.1 255.255.255.0
encapsulation ppp
dialer idle-timeout 30
dialer map ip 0.0.0.0 bt_dis
dialer map ip 10.44.20.2 name elland 01422370259
dialer hold-queue 15
dialer load-threshold 100 either
dialer-group 1
peer default ip address pool bt_dis_maintain
no fair-queue
ppp authentication chap
ppp multilink
!
router eigrp 200
redistribute static
network 10.0.0.0
no auto-summary
!
ip local pool bt_dis_maintain 10.44.20.254
no ip classless
ip route 10.44.5.0 255.255.255.0 10.44.20.2 200
ip route 192.168.0.0 255.255.255.0 10.44.1.14
access-list 101 deny ip any host 255.255.255.255
access-list 101 deny ip host 255.255.255.255 any
access-list 101 permit ip any any
dialer-list 1 protocol ip list 101
!
line con 0
password 7 060506324F41
login
line vty 0 4
password 7 070C285F4D06
login
!
end

milton#sh int stat
BRI0
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 0 0 0 0
Route cache 0 0 0 0
Total 0 0 0 0
BRI0:1
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 0 0 0 0
Route cache 0 0 0 0
Total 0 0 0 0
BRI0:2
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 0 0 0 0
Route cache 0 0 0 0
Total 0 0 0 0
Ethernet0
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 3278284 1218071655 305967 24959565
Route cache 0 0 2216728 477587793
Total 3278284 1218071655 2522695 502547358
Serial0
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 299059 18890385 2520335 1063691929
Route cache 2216757 449654246 0 0
Total 2515816 468544631 2520335 1063691929

milton# sh ip traffic
IP statistics:
Rcvd: 5055518 total, 611238 local destination
0 format errors, 0 checksum errors, 0 bad hop count
0 unknown protocol, 0 not a gateway
0 security failures, 0 bad options, 0 with options
Opts: 0 end, 0 nop, 0 basic security, 0 loose source route
0 timestamp, 0 extended security, 0 record route
0 stream ID, 0 strict source route, 0 alert, 0 cipso
0 other
Frags: 0 reassembled, 0 timeouts, 0 couldn't reassemble
147 fragmented, 0 couldn't fragment
Bcast: 291153 received, 0 sent
Mcast: 319822 received, 578102 sent
Sent: 385630 generated, 4443574 forwarded
192819 encapsulation failed, 0 no route

ICMP statistics:
Rcvd: 0 format errors, 0 checksum errors, 0 redirects, 0 unreachable
0 echo, 0 echo reply, 0 mask requests, 0 mask replies, 0 quench
0 parameter, 0 timestamp, 0 info request, 0 other
0 irdp solicitations, 0 irdp advertisements
Sent: 0 redirects, 0 unreachable, 0 echo, 0 echo reply
0 mask requests, 0 mask replies, 39 quench, 0 timestamp
0 info reply, 0 time exceeded, 0 parameter problem
0 irdp solicitations, 0 irdp advertisements

IGRP statistics:
Rcvd: 0 total, 0 checksum errors
Sent: 0 total

IP-IGRP2 statistics:
Rcvd: 192718 total
Sent: 385390 total

UDP statistics:
Rcvd: 291153 total, 0 checksum errors, 288438 no port
Sent: 0 total, 0 forwarded broadcasts

TCP statistics:
Rcvd: 248 total, 0 checksum errors, 3 no port
Sent: 203 total

ARP statistics:
Rcvd: 357431 requests, 98 replies, 0 reverse, 0 other
Sent: 130 requests, 6569 replies (0 proxy), 0 reverse
milton#


"Merv" <> wrote in message news:< roups.com>...
> post output of
>
> sh run
>
> sh interface
>
> sh int stat
>
> sh ip traffic

> Serial0 is up, line protocol is up
> Hardware is QUICC Serial
> Description: *** NXUK9230 TO elland ****
> Internet address is 10.44.10.5/30
> MTU 1500 bytes, BW 512000 Kbit, DLY 20000 usec, rely 255/255, load 1/255
> Encapsulation HDLC, loopback not set, keepalive set (10 sec)
> Last input 00:00:00, output 00:00:00, output hang never
> Last clearing of "show interface" counters never
> Queueing strategy: fifo
> Output queue 0/40, 128 drops; input queue 0/75, 0 drops
> 5 minute input rate 7000 bits/sec, 14 packets/sec
> 5 minute output rate 13000 bits/sec, 14 packets/sec
> 2515355 packets input, 468509437 bytes, 0 no buffer
> Received 103787 broadcasts, 0 runts, 0 giants, 0 throttles
> 2078 input errors, 1797 CRC, 82 frame, 0 overrun, 0 ignored, 104 abort
> 2519865 packets output, 1063566474 bytes, 0 underruns
> 0 output errors, 0 collisions, 17 interface resets
> 0 output buffer failures, 0 output buffers swapped out
> 160 carrier transitions
> DCD=up DSR=up DTR=up RTS=up CTS=up

1797 CRC

This isn't good, will lead to dropped packets and all sorts of problems,
depending of course on what the uptime of that router is. It it were 1797
CRC's over the last six months then maybe that would be okay (ish) but is
that is over a day or two then you have a physical problem somewhere. Could
be a cable or NTE problem. It's usually something physical like a card on
the telco network or something. A large number of CRC's and/or input/output
errors will manifest itself as poor performance.

Everytime that I've had CRC's on a serial line it's generally been solved by
swapping the telco NTE.

Just a thought.

1. WHY has fast switching been disabled on the serial interface; all
the packet on this interface are being processedd siwtched !!!
Suggest you reneable fast switching

int serial 0
ip route-cache
exit


2. Consider upgrading the IOS version to one that supports CEF
switching

CEF is enalbe by configuring

conf t
ip cef
exit


3. the serial interface has had a lot of interface transitions.
Clear the interface counters and repost show interface after
a 24 to 48 hour period.


4. BTW disable tcp and udp smalll servers as they are a security risk

no service tcp-small-server
no service udp-small-server

errors on interface are probably from when i was swapping over from
the 256kbps to the 1mb line, with the cables disconnected i expect
we'd get those errors?

i'll clear the counters today and repost in 24 hours

will also make changes you recommended merv

should i worry about the small servers on a small internal connection?

Paul

"Merv" <> wrote in message news:< roups.com>...
> 1. WHY has fast switching been disabled on the serial interface; all
> the packet on this interface are being processedd siwtched !!!
> Suggest you reneable fast switching
>
> int serial 0
> ip route-cache
> exit
>
>
> 2. Consider upgrading the IOS version to one that supports CEF
> switching
>
> CEF is enalbe by configuring
>
> conf t
> ip cef
> exit
>
>
> 3. the serial interface has had a lot of interface transitions.
> Clear the interface counters and repost show interface after
> a 24 to 48 hour period.
>
>
> 4. BTW disable tcp and udp smalll servers as they are a security risk
>
> no service tcp-small-server
> no service udp-small-server

Sorry taken so long to get sorted this is latest counters

Serial0 is up, line protocol is up
Hardware is QUICC Serial
Description: *** NXUK9230 TO elland ****
Internet address is 10.44.10.5/30
MTU 1500 bytes, BW 512000 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 00:00:04, output 00:00:00, output hang never
Last clearing of "show interface" counters 1w0d
Queueing strategy: fifo
Output queue 0/40, 108 drops; input queue 1/75, 0 drops
5 minute input rate 3000 bits/sec, 5 packets/sec
5 minute output rate 5000 bits/sec, 5 packets/sec
1414314 packets input, 191327522 bytes, 0 no buffer
Received 79463 broadcasts, 0 runts, 0 giants, 0 throttles
716 input errors, 155 CRC, 242 frame, 0 overrun, 0 ignored, 315 abort
1353154 packets output, 338880432 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 output buffer failures, 0 output buffers swapped out
12 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up

Anyone got any ideas why the line keeps dropping?

Paul


(paul tomlinson) wrote in message news:<. com>...
> errors on interface are probably from when i was swapping over from
> the 256kbps to the 1mb line, with the cables disconnected i expect
> we'd get those errors?
>
> i'll clear the counters today and repost in 24 hours
>
> will also make changes you recommended merv
>
> should i worry about the small servers on a small internal connection?
>
> Paul
>
> "Merv" <> wrote in message news:< roups.com>...
> > 1. WHY has fast switching been disabled on the serial interface; all
> > the packet on this interface are being processedd siwtched !!!
> > Suggest you reneable fast switching
> >
> > int serial 0
> > ip route-cache
> > exit
> >
> >
> > 2. Consider upgrading the IOS version to one that supports CEF
> > switching
> >
> > CEF is enalbe by configuring
> >
> > conf t
> > ip cef
> > exit
> >
> >
> > 3. the serial interface has had a lot of interface transitions.
> > Clear the interface counters and repost show interface after
> > a 24 to 48 hour period.
> >
> >
> > 4. BTW disable tcp and udp smalll servers as they are a security risk
> >
> > no service tcp-small-server
> > no service udp-small-server