Cisco Router 1721 vs BT 20Mb internet???

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Hello everybody.

I had my internet updated from 8Mb to 20Mb.
I am with BT adsl broadband.

My average downloads are around 1.5Mbps.

Will my cisco 1721 router manage this internet connection or will it be to much for it to handle?

Will I be better of with Bt Home Hub Version 2.0???? Curvy one with blue lights.

Other then my Cisco or Bt Home Hub, anything out there better than these two?

Can spend up to £100 give or take on a new adsl2+ modem/router/wap/switch.

Any comments well appreciated.

Cheers.

 

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No - it's way too much for it to handle. I had some offices with 1721s that were experiencing speed issues. We upgraded them to 6 Mbps links (four bonded T1s) and the problem didn't go away. I used NetCPS to determine what was up, and I saw the links burst... and choke... and burst... and choke. Turns out that 6 Mbps was more than the 1721s can handle. They're designed for a single T1, though you could probably get by on a 3 Mbps link, based on what I saw.

 

I would go with the BT home hub, at Least then you know it will do the job.......I have this hub and it works fantastic

 

Have you turned on CEF?

I have the same router.

I have cable modem connection with 12/2 with burst up to 20/3 and my router seems to pass it. however I run router on stick, I don't have any Wic cards installed.

This is my configuration

CM-->switch 2950 port on vlan2, c1721-->trunk port dot1q, all other conenctions to ports on vlan1

here is my config


Building configuration...

Current configuration : 2405 bytes
!
! Last configuration change at 03:10:18 UTC Fri Aug 15 2008
! NVRAM config last updated at 03:11:28 UTC Fri Aug 15 2008
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname c1700
!
enable secret 5 $1$7Ktw$kQilIdOAz9RNzmoz5KCCq.
!
username tbabula privilege 15 password 0 sidewander9
ip subnet-zero
!
!
ip dhcp excluded-address 192.168.2.1 192.168.2.5
ip dhcp excluded-address 192.168.2.254
!
ip dhcp pool IP-Pool
network 192.168.2.0 255.255.255.0
default-router 192.168.2.1
dns-server 75.75.75.75 75.75.76.76
domain-name comcast.net
lease 5
!
ip cef
vpdn enable
!
vpdn-group 1
! Default PPTP VPDN group
accept-dialin
protocol pptp
virtual-template 1
!
!
!
!
!
!
!
!
interface FastEthernet0
no ip address
speed auto
full-duplex
no cdp enable
!
interface FastEthernet0.1
description inside vlan 2
encapsulation dot1Q 1 native
ip address 192.168.2.1 255.255.255.0
ip nat inside
no cdp enable
!
interface FastEthernet0.2
description OUTSIDE
encapsulation dot1Q 2
ip address dhcp
ip access-group FW-IN in
ip nat outside
no cdp enable
!
interface Virtual-Template1
ip unnumbered FastEthernet0.2
peer default ip address pool IP-Pool
no keepalive
ppp encrypt mppe auto
ppp authentication pap chap ms-chap
!
ip nat translation timeout 900
ip nat translation tcp-timeout 600
ip nat translation udp-timeout 400
ip nat translation dns-timeout 300
ip nat translation icmp-timeout 120
ip nat translation max-entries 4000
ip nat inside source list 1 interface FastEthernet0.2 overload
ip nat inside source static 192.168.2.3 interface FastEthernet0.2
no ip classless
no ip http server
no ip http secure-server
!
!
!
ip access-list extended FW_IN
deny ip 10.0.0.0 0.255.255.255 any log
deny ip 172.16.0.0 0.0.255.255 any log
deny ip 192.168.0.0 0.0.255.255 any log
deny ip 127.0.0.0 0.255.255.255 any log
deny ip 255.0.0.0 0.255.255.255 any log
permit tcp any eq domain any
permit udp any eq domain any
permit udp any eq bootps any log
permit tcp any eq www any
permit tcp any any eq 39472
permit udp any any eq 39472
permit tcp any any established
deny ip any any log
access-list 1 permit 192.168.2.0 0.0.0.255
access-list 1 remark NAT_ACL
no cdp run
!
!
line con 0
line aux 0
line vty 0 4
privilege level 15
password cisco
login
transport input telnet ssh
!
!
end