cisco 2651XM router with wic1-adsl card IOS: c2600-ipbase-mz.123-11.T.bin (12Mb) broadband = bog standard 8Mb adsl on BT line
I've discovered to my dismay my cisco router only gives me half the broadband speed of a cheap plastic router (Billion 5200G). If I connect my PC straight to a Billion 5200G adsl router I am getting about
3800kbps download at speedtest.net, and a file download from microsoft.com came down at about 450Kb/sec. However if I swap the Billion for my cisco router I only get about 2500kbps at speedtest.net and the same file from MS downloads at approx 290KKB/sec. This is quite a difference and I never expected cisco gear to give such poor performance - unless I'm doing something wrong that is. In testing the cisco I used two different IOS's - a minimal IOS (above) and a larger IOS with a bare bones running-config (below), no firewalls or anything and still the speed was slow. Next thing I did was change the adsl card (I've got two cards) but that made no difference. Another thing I tried was I took the adsl card out of the cisco router and configured a route through it out into the Billion router, so effectively the internet traffic was still going through the cisco router and the speed was back up to 3800kbps again, which would indicate the problem is with the WIC1-adsl card. So either these cards aren't much cop or I haven't configured it correctly. I duplicated the above test on a second 2651XM router I have and I got the same results. Below is a copy of my running-config and a bit extra so if anyone can see frailties in it that would cause adsl slowness I'd be grateful for some tips. Thanks if you can advise and sorry for the long post but I wanted to give as much info as possible.vpn#show int ATM0/0 ATM0/0 is up, line protocol is up Hardware is DSLSAR (with Alcatel ADSL Module) MTU 4470 bytes, sub MTU 4470, BW 448 Kbit/sec, DLY 1140 usec, reliability 5/255, txload 1/255, rxload 1/255 Encapsulation ATM, loopback not set Encapsulation(s): AAL5 AAL2, PVC mode 23 maximum active VCs, 256 VCs per VP, 1 current VCCs VC Auto Creation Disabled. VC idle disconnect time: 300 seconds Last input never, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: Per VC Queueing 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 12 packets input, 343 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 10 packets output, 256 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 unknown protocol drops 0 output buffer failures, 0 output buffers swapped out
vpn#show int Dialer0 Dialer0 is up, line protocol is up (spoofing) Hardware is Unknown Internet address is xxxxxxxxxxxxx/32 MTU 1500 bytes, BW 56 Kbit/sec, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set Keepalive set (10 sec) DTR is pulsed for 1 seconds on reset Interface is bound to Vi2 Last input never, output never, output hang never Last clearing of "show interface" counters 00:07:38 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 42 kilobits/sec 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 8 packets input, 252 bytes 8 packets output, 196 bytes Bound to: Virtual-Access2 is up, line protocol is up Hardware is Virtual Access interface MTU 1500 bytes, BW 448 Kbit/sec, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, LCP Open Open: IPCP PPPoATM vaccess, cloned from Dialer0 Vaccess status 0x44 Bound to ATM0/0 VCD: 1, VPI: 0, VCI: 38, loopback not set Keepalive set (10 sec) DTR is pulsed for 5 seconds on reset Interface is bound to Di0 (Encapsulation PPP) Last input 00:00:25, output never, output hang never Last clearing of "show interface" counters 00:01:31 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 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 21 packets input, 517 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 18 packets output, 356 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 unknown protocol drops 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions
router running config: ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname vpn ! boot-start-marker boot-end-marker ! no logging console enable secret 5 xxxxxxxxxxxxxxxxxxxxxxxxxx enable password xxxxxxxxxx ! no network-clock-participate slot 1 no network-clock-participate wic 0 no aaa new-model ip subnet-zero ip cef ! ! ip dhcp excluded-address 192.168.1.1 192.168.1.199 ip dhcp excluded-address 192.168.1.241 192.168.1.255 ! ip dhcp pool 192.168.1.0/24 network 192.168.1.0 255.255.255.0 default-router 192.168.1.254 dns-server 212.23.3.100 212.23.6.100 ! ! ip name-server 212.23.3.100 ip name-server 212.23.6.100 ! ! ! ! interface ATM0/0 no ip address no atm ilmi-keepalive dsl operating-mode auto pvc 0/38 encapsulation aal5mux ppp dialer dialer pool-member 1 ! ! interface FastEthernet0/0 no ip address shutdown duplex auto speed auto ! interface FastEthernet0/1 description $ETH-LAN$ ip address 192.168.1.254 255.255.255.0 ip nat inside duplex auto speed auto no mop enabled ! interface Dialer0 ip address negotiated previous no ip redirects no ip proxy-arp ip nat outside encapsulation ppp dialer pool 1 dialer idle-timeout 0 dialer persistent dialer-group 1 no cdp enable ppp authentication chap callin ppp chap hostname zzzzzzzzzzzz ppp chap password 0 zzzzzzzzzzz ! ip classless ip route 0.0.0.0 0.0.0.0 Dialer0 permanent ! ip http server ip nat inside source list 100 interface Dialer0 overload ! access-list 100 remark internet access-list 100 remark SDM_ACL Category=2 access-list 100 permit ip any any ! control-plane ! ! line con 0 line aux 0 line vty 0 4 password xxxxx login ! ! end