Hello Guy's
Im getting really poor performance on my 1841, my intial thoughts was a duplex mismatch however although im getting a few CRC errors (root cause unknown at this point) not enough to suggest that the this is the issue.
Heres the config, if any could lend any ideas.
Building configuration...
Current configuration : 5274 bytes
!
! Last configuration change at 20:31:01 PCTime Sun Dec 18 2011 by admin_x
version 15.1
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service sequence-numbers
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hostname xxxxxx
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boot-start-marker
boot-end-marker
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!
security authentication failure rate 10 log
security passwords min-length 6
logging buffered 4096
enable secret 5 $1$PVkz$/eMJav5JfVM1vOtJ/QxTd/
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aaa new-model
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aaa authentication login local_auth local
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!
!
!
!
aaa session-id common
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clock timezone PCTime 0 0
clock summer-time PCTime date Mar 30 2003 1:00 Oct 26 2003 2:00
dot11 syslog
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dot11 ssid I@mS3cUrE
vlan 1
authentication open
authentication key-management wpa
wpa-psk ascii 7 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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no ip source-route
no ip gratuitous-arps
!
!
!
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.199.225
ip dhcp excluded-address 192.168.199.226
!
ip dhcp pool LAN_POOL
import all
network 192.168.199.224 255.255.255.240
dns-server 8.8.8.8
default-router 192.168.199.225
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!
ip cef
no ip bootp server
ip domain name NoDotCom.Local
ip name-server 8.8.8.8
ip inspect audit-trail
ip inspect udp idle-time 1800
ip inspect dns-timeout 7
ip inspect tcp idle-time 14400
no ipv6 cef
!
multilink bundle-name authenticated
!
crypto pki token default removal timeout 0
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crypto pki trustpoint TP-self-signed-1977233307
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-1977233307
revocation-check none
rsakeypair TP-self-signed-1977233307
!
!
crypto pki certificate chain TP-self-signed-1977233307
certificate self-signed 01
3082024E 308201B7 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
69666963 6174652D 31393737 32333333 3037301E 170D3131 31303238 31333335
34375A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
etctetcetc
quit
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license udi pid CISCO1841 xxxxxxxxxxxx
username xxxxxxxxxxxxxxxxxxxxxxxxx
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redundancy
!
!
ip tcp synwait-time 10
ip tcp path-mtu-discovery
ip ssh time-out 60
ip ssh authentication-retries 2
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!
!
!
!
!
!
interface FastEthernet0/0
description PUBLIC_FACING
ip address dhcp client-id FastEthernet0/0
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
ip nat outside
ip virtual-reassembly in
speed 100
full-duplex
no mop enabled
!
interface FastEthernet0/1
description $ES_LAN$$FW_INSIDE$
ip address 192.168.199.225 255.255.255.240
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
ip nat inside
ip virtual-reassembly in
speed 100
full-duplex
no mop enabled
!
interface Dot11Radio0/0/0
no ip address
!
encryption vlan 1 mode ciphers aes-ccm
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broadcast-key vlan 1 change 30
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!
ssid I@mS3cUrE
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mbssid
speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0
station-role root
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interface Dot11Radio0/0/0.1
encapsulation dot1Q 1 native
no cdp enable
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
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ip forward-protocol nd
no ip http server
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
!
!
ip nat inside source list 1 interface FastEthernet0/0 overload
ip route 0.0.0.0 0.0.0.0 <-- Given by DHCP, by Docsis3 VM superhub in Modem Mode.
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logging trap debugging
access-list 1 permit any
no cdp run
!
!
!
!
!
!
!
!
control-plane
!
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banner login ^CAuthorized access only!
Disconnect IMMEDIATELY if you are not an authorized user!^C
!
line con 0
exec-timeout 0 0
transport output telnet
line aux 0
exec-timeout 0 0
transport output telnet
line vty 0 4
privilege level 15
transport input ssh
transport output ssh
line vty 5 15
privilege level 15
transport input ssh
transport output ssh
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scheduler allocate 4000 1000
The config as you can see is pretty basic at this point,
So the Normal Virgin Media works fine and delivers 50Mb out of the box. When I set the no so "SuperHub" to modem mode (basically passing everything to the 1841) I get barely 2Mb. when I hook the Superhub straight up to my PC in modem mode i get the full 50Mb. So the fault clearly resides with the 1841.
#show int f0/0
FastEthernet0/0 is up, line protocol is up
Hardware is Gt96k FE, address is 001e.7a55.2d8c (bia 001e.7a55.2d8c)
Description: PUBLIC_FACING
Internet address is xx.xx.xx.xx/24
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:39, 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: fifo
Output queue: 0/40 (size/max)
5 minute input rate 621000 bits/sec, 52 packets/sec
5 minute output rate 23000 bits/sec, 42 packets/sec
350448 packets input, 280934844 bytes
Received 3095 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
441425 packets output, 124614124 bytes, 0 underruns
0 output errors, 0 collisions, 11 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
show int f0/1
FastEthernet0/1 is up, line protocol is up
Hardware is Gt96k FE, address is 001e.7a55.2d8d (bia 001e.7a55.2d8d)
Description: $ES_LAN$$FW_INSIDE$
Internet address is 192.168.199.225/28
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 100BaseTX/FX
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
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 24000 bits/sec, 44 packets/sec
5 minute output rate 621000 bits/sec, 51 packets/sec
390507 packets input, 119689602 bytes
Received 16 broadcasts (0 IP multicasts)
43 runts, 0 giants, 0 throttles
321 input errors, 321 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
315756 packets output, 276929904 bytes, 0 underruns
0 output errors, 0 collisions, 4 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Also Performance even to the to web management of the Superhub via the cisco router seems slow.
Cheers Neil
Regards Neil
http://uk.linkedin.com/pub/neil-grant/20/5b0/267
