10-24-2007 10:12 AM
I have a 1721 with an ethernet WIC cloned to a dialer interface. The WIC goes out to a DSL modem. My issue is that ever since I deployed this router, the speed has been diminished enough to make people complain. Its a 3mb circuit, but this is what I show when I pull up the dialer interface:
Dialer0 is up, line protocol is up (spoofing)
Hardware is Unknown
Internet address is <MASKED>
MTU 1500 bytes, BW 3000 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 11/255
Encapsulation PPP, loopback not set
Keepalive set (10 sec)
DTR is pulsed for 1 seconds on reset
Interface is bound to Vi1
Last input never, output never, output hang never
Last clearing of "show interface" counters 1d01h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/0/16 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 2250 kilobits/sec
5 minute input rate 133000 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
603534 packets input, 698765983 bytes
394642 packets output, 47367523 bytes
Bound to:
Virtual-Access1 is up, line protocol is up
Hardware is Virtual Access interface
MTU 1500 bytes, BW 56 Kbit, DLY 20000 usec,
reliability 255/255, txload 22/255, rxload 51/255
Encapsulation PPP, LCP Open
Open: IPCP
PPPoE vaccess, cloned from Dialer0
Vaccess status 0x44, loopback not set
Keepalive set (10 sec)
Interface is bound to Di0 (Encapsulation PPP)
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters 20:11:48
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 174000 bits/sec, 7 packets/sec
5 minute output rate 5000 bits/sec, 5 packets/sec
427406 packets input, 470254490 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
295171 packets output, 36634198 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
As you can see, the virtual-Access1 interface is showing bandwidth of 56Kbit, whisch looks like ths slowness issue. What do I need to change on my config to get this speed to where it is supposed to be? Here is my currect interfaces config:
interface Loopback0
no ip address
shutdown
!
interface Ethernet0
no ip address
ip virtual-reassembly
half-duplex
pppoe enable
pppoe-client dial-pool-number 1
no cdp enable
!
interface Ethernet0.1
shutdown
no cdp enable
!
interface FastEthernet0
description local LAN
ip address <MASKED>
ip nbar protocol-discovery
ip nat inside
ip virtual-reassembly
speed 100
full-duplex
no cdp enable
!
interface Virtual-Template1
no ip address
!
interface Dialer0
bandwidth 3000
bandwidth inherit 3000
ip address <MASKED>
ip access-group 102 in
ip mtu 1492
ip inspect FIREWALL out
ip nat outside
ip virtual-reassembly
encapsulation ppp
no ip route-cache cef
no ip route-cache
no ip mroute-cache
dialer pool 1
dialer-group 1
ppp authentication pap chap callin
ppp chap hostname <MASKED>t
ppp chap password 7 <MASKED>
ppp pap sent-username <MASKED> password 7 <MASKED>
crypto map *********
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer0
Thanks for any help!
10-25-2007 01:07 AM
Your config looks fairly OK to me. The bandwidth setting on the virtual interface is merely administrative and I do not think it affects the performance in any way.
I think it can be changed by modifying the bandwidth setting on interface Virtual-Template1.
For the poor performance, I think you should rather check the overbooking rate on the link and/or contact your provider.
regards,
Leo
10-25-2007 07:53 AM
Is there any chance the IOS type could be doing this? I am currently using c1700-advsecurityk9-mz.124-1c.bin
10-29-2007 01:04 AM
With such a low release number, there is always a chance for that. However, with an old platform like the 1700, I would not try an upgrade. Reason for this: newer releases also draw heavier on the system resources.
Try downgrading to a stable image in the 12.3 train instead.
regards,
Leo
10-29-2007 08:40 AM
I sent them a 1700 with a DSL WIC to see if that helps. It has a 12.4 release, but I can always downgrade it remotely if need be. I do NOT like up/downgrading IOS images remotely because of the problems that may arise, but it is what it is.
Can someone have a look at this config to see if it looks ok? Thanks!
interface ATM0
no ip address
no atm ilmi-keepalive
dsl operating-mode auto
!
interface ATM0.1 point-to-point
pvc 0/35
pppoe-client dial-pool-number 1
!
!
interface FastEthernet0
description local LAN
ip address *.*.*.* 255.255.255.0
ip nat inside
ip virtual-reassembly
speed auto
full-duplex
no cdp enable
!
interface Dialer0
ip address *.*.*.* 255.255.255.248
ip access-group 102 in
ip mtu 1492
ip inspect FIREWALL out
ip nat outside
ip virtual-reassembly
encapsulation ppp
no ip route-cache cef
no ip route-cache
no ip mroute-cache
dialer pool 1
dialer-group 1
no cdp enable
ppp authentication pap chap callin
ppp chap hostname ****@pacbell.net
ppp chap password 7 ***********
ppp pap sent-username ****@pacbell.net password 7 *********
crypto map ****_map
!
no ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Dialer0
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