wir haben in einer Außenstelle ein kleines Problem mit den Antwortzeiten.
Sobald wir z.B. eine Remoteverbindung zu einem Client aufbauen, schwanken diese zwischen 100-800ms. Im Normalfall schwankt dies zwischen 60-80ms.
Folgende Struktur:
Standort Firma:
- 2 ISP Anbieter mit jeweils 10MBit
- 2 Cisco 2800 Router (VPN Router) mit IOS Version 12.4(9)T5
Standort Außenstelle:
- VPN 836/876 Router in diesem Fall IOS Version 12.4(15)T10
- 1 Cisco C2960 mit IOS Version 12.2(25)SEE2
Die DSL Business Leitung soll laut Telekom in Ordnung sein.
Anbei der Output:
Code:
VPN_Aachen#sh dsl int atm 0
ATM0
Alcatel 20190 chipset information
ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.1 (G.DMT) Annex B
ITU STD NUM: 0x03 0x1
Vendor ID: 'STMI' 'IFTN'
Vendor Specific: 0x0000 0x71B8
Vendor Country: 0x0F 0xB5
Chip ID: C196 (0)
DFE BOM: DFE3.0 Annex B (2)
Capacity Used: 77% 61%
Noise Margin: 13.5 dB 19.0 dB
Output Power: 13.0 dBm 10.0 dBm
Attenuation: 13.0 dB 6.0 dB
Defect Status: None None
Last Fail Code: None
Watchdog Counter: 0x52
Watchdog Resets: 0
Selftest Result: 0x00
Subfunction: 0x00 (UR2)
Interrupts: 12378 (0 spurious)
PHY Access Err: 0
Activations: 1
LED Status: ON
LED On Time: 100
LED Off Time: 100
Init FW: init_AMR-3.0.014_no_bist.bin
Operation FW: AMR-3.0.014.bin
FW Source: embedded
FW Version: 3.0.14
Interleave Fast Interleave Fast
Speed (kbps): 6656 0 640 0
Cells: 2303410 0 10542259 0
Reed-Solomon EC: 0 0 0 0
CRC Errors: 0 0 0 0
Header Errors: 0 0 0 0
Total BER: 0E-0 0E-0
Leakage Average BER: 0E-0 0E-0
ATU-R (DS) ATU-C (US)
Bitswap: enabled enabled
Bitswap success: 0 0
Bitswap failure: 0 0
LOM Monitoring : Disabled
DMT Bits Per Bin
000: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
010: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
020: 0 6 7 7 8 8 8 8 8 8 8 9 9 9 9 9
030: 9 8 8 8 8 7 6 6 6 5 5 5 4 4 5 6
040: 7 9 9 A A B B B B C B B C B C B
050: B B B B B B B B B B C B B B B B
060: 0 B B B B B B B B B B B B B B B
070: B B B B 2 B B B B B B B B B B B
080: B B B B B B B B A B A A A B A A
090: A A B A A A A A A A A A A A A A
0A0: A A A A A A A A A A A 9 9 A A A
0B0: 9 A 9 9 A 9 9 9 9 9 9 9 9 9 9 9
0C0: 9 9 9 9 9 9 9 9 9 9 A 9 9 9 9 9
0D0: 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9
0E0: 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9
0F0: 9 9 9 9 8 9 9 8 9 9 9 8 8 8 8 8
DSL: Training log buffer capability is not enabled
Dies ist allerdings nur 1 von 30 anderen Außenstellen. Die anderen funktionieren Problemlos.
VPN_Aachen#sh run
Building configuration...
Current configuration : 4781 bytes
!
! Last configuration change at 08:38:24 MET Thu Dec 22 2011 by vpn
! NVRAM config last updated at 08:39:12 MET Thu Dec 22 2011 by vpn
!
version 12.4
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
!
hostname VPN_XXX
!
boot-start-marker
boot-end-marker
!
logging buffered 51200
!
no aaa new-model
clock timezone MET 1
clock summer-time MESZ recurring last Sun Mar 2:00 last Sun Oct 3:00
!
crypto pki trustpoint TP-self-signed-850411496
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-850411496
revocation-check none
rsakeypair TP-self-signed-850411496
!
!
dot11 syslog
ip cef
!
!
ip dhcp excluded-address 10.10.10.1
!
!
no ip domain lookup
ip domain name domain.local
!
multilink bundle-name authenticated
isdn switch-type basic-net3
!
!
crypto isakmp keepalive 20 8 periodic
!
!
!
!
!
crypto ipsec client ezvpn crws-client
connect auto
group GROUP key 6 KEY
mode network-extension
peer 11.11.11.11 default
peer 12.12.12.12
idletime 600
xauth userid mode interactive
!
!
archive
log config
hidekeys
!
!
ip tcp synwait-time 10
ip tftp source-interface Vlan1
ip ssh time-out 60
ip ssh authentication-retries 2
!
!
!
interface BRI0
no ip address
encapsulation hdlc
shutdown
isdn switch-type basic-net3
isdn point-to-point-setup
!
interface ATM0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
ip virtual-reassembly
ip route-cache flow
no ip mroute-cache
atm vc-per-vp 64
no atm ilmi-keepalive
dsl operating-mode auto
!
interface ATM0.1 point-to-point
no ip redirects
no ip unreachables
no ip proxy-arp
pvc 1/32
oam-pvc 0
pppoe-client dial-pool-number 1
!
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface Vlan1
description VPN_XXX
ip address 10.10.10.10 255.255.255.240
ip verify unicast reverse-path
no ip redirects
no ip unreachables
no ip proxy-arp
ip mtu 1380
ip nat inside
ip virtual-reassembly
ip route-cache flow
ip tcp adjust-mss 1380
ip policy route-map clear-df-bit-map
crypto ipsec client ezvpn crws-client inside
!
interface Dialer0
description $FW_INSIDE$
mtu 1400
ip address negotiated
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
ip virtual-reassembly
encapsulation ppp
ip route-cache flow
dialer pool 1
dialer remote-name redback
dialer-group 1
no cdp enable
ppp authentication pap chap callin
ppp chap hostname t-online-com/X9X@t-online-com.de
ppp chap password 7 111
ppp pap sent-username t-online-com/X9X@t-online-com.de password 7 111
ppp ipcp dns request
ppp ipcp wins request
crypto ipsec client ezvpn crws-client
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Dialer0 permanent
!
!
ip http server
ip http access-class 23
ip http authentication local
ip http secure-server
ip http timeout-policy idle 5 life 86400 requests 10000
!
ip access-list extended clear-df-bit
permit tcp any any
!
trap debugging
dialer-list 1 protocol ip permit
no cdp run
!
!
!
route-map clear-df-bit-map permit 10
match ip address clear-df-bit
set ip df 0
!
!
control-plane
!
banner login ^CCCC
-----------------------------------------------------------------------
This Router is private property of XXX
If you have access please disconnect and contact our hotline
xxx
-----------------------------------------------------------------------
^C
!
line con 0
login local
no modem enable
transport output telnet
stopbits 1
line aux 0
login local
transport output telnet
line vty 0 4
access-class 23 in
privilege level 15
login local
length 0
transport input telnet ssh
!
scheduler max-task-time 5000
scheduler allocate 4000 1000
scheduler interval 500
ntp clock-period 17182592
ntp server 213.133.98.226
end
Also auf dem Außenstellenrouter und Switch sieht es "gut" aus:
Code:
VPN_XXX#sh interfaces status
Port Name Status Vlan Duplex Speed Type
Fa0 connected 1 a-full a-100 10/100BaseTX
Fa1 connected 1 a-full a-100 10/100BaseTX
Fa2 connected 1 a-full a-100 10/100BaseTX
Fa3 notconnect 1 auto auto 10/100BaseTX
Code:
DV_XXX#show int status
Port Name Status Vlan Duplex Speed Type
Fa0/1 notconnect 1 auto auto 10/100BaseTX
Fa0/2 kasse-m01-XXX connected 1 a-full a-100 10/100BaseTX
Fa0/3 notconnect 1 auto auto 10/100BaseTX
Fa0/4 notconnect 1 auto auto 10/100BaseTX
Fa0/5 notconnect 1 auto auto 10/100BaseTX
Fa0/6 connected 1 a-full a-100 10/100BaseTX
Fa0/7 notconnect 1 auto auto 10/100BaseTX
Fa0/8 notconnect 1 auto auto 10/100BaseTX
Fa0/9 notconnect 1 auto auto 10/100BaseTX
Fa0/10 notconnect 1 auto auto 10/100BaseTX
Fa0/11 notconnect 1 auto auto 10/100BaseTX
Fa0/12 notconnect 1 auto auto 10/100BaseTX
Fa0/13 notconnect 1 auto auto 10/100BaseTX
Fa0/14 notconnect 1 auto auto 10/100BaseTX
Fa0/15 notconnect 1 auto auto 10/100BaseTX
Fa0/16 connected 1 a-full a-100 10/100BaseTX
Fa0/17 notconnect 1 auto auto 10/100BaseTX
Fa0/18 notconnect 1 auto auto 10/100BaseTX
Fa0/19 connected 1 a-full a-100 10/100BaseTX
Fa0/20 notconnect 1 auto auto 10/100BaseTX
Fa0/21 notconnect 1 auto auto 10/100BaseTX
Fa0/22 notconnect 1 auto auto 10/100BaseTX
Fa0/23 notconnect 1 auto auto 10/100BaseTX
Fa0/24 connected 1 a-full a-100 10/100BaseTX
Gi0/1 notconnect 1 auto auto 10/100/1000BaseTX
Gi0/2 notconnect 1 auto auto 10/100/1000BaseTX
