[c-nsp] wirelss issue between two 4500 switches
gokhan senol
gokhanciscottl at yahoo.com
Wed May 23 08:56:14 EDT 2007
hi
i have two wireless connection between two 4503 switches/ and CCM for each side
i configured one wireless connection for voice and the other for data
but even the radio interfcaes up and even i can ping the CCM from both side ,ip phones often loose their registration and also sometime loose connection between data networks.
ppl from side A or sideB is logically different but as physical everyone is everywhere. What i mean is a user from sideB stays on sideA or other way. based on vlan design
i route data subnets from management vlan. and voice subnets from vlan 1
as you notice vlan1 allowed in both of the trunk ports(the ports connected wireless devices)
problem is too often data or voice become inaccessible. sometimes router forget arp ,
and sometimes even i can ping the CCM on the other side my ip phones cannot register. After resetting the wireless devices problem is solved.
when i check ithe nterfaces which are connected to wireless devices there are so many errors
is it normal for wireless devices/ or what do u suggest me
switch configs are below
thanks a lot
_4503#sh int gi 1/2
GigabitEthernet1/2 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet Port, address is 0018.1992.fe41 (bia 0018.1992.fe41)
Description: ------ WIRELESS ACCESS voice only-----
MTU 1500 bytes, BW 100000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, link type is auto, media type is 10/100/1000-TX
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters 00:23:49
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 379000 bits/sec, 216 packets/sec
5 minute output rate 472000 bits/sec, 271 packets/sec
327259 packets input, 70919647 bytes, 0 no buffer
Received 3581 broadcasts (2698 multicast)
626 runts, 0 giants, 0 throttles
663 input errors, 37 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
407004 packets output, 87999308 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
_4503#sh int gi 1/1
GigabitEthernet1/1 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet Port, address is 0018.1992.fe40 (bia 0018.1992.fe40)
Description: ------ WIRELESS ACCESS -----
MTU 1500 bytes, BW 100000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, link type is auto, media type is 10/100/1000-TX
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:01, output never, output hang never
Last clearing of "show interface" counters 00:23:58
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 675000 bits/sec, 193 packets/sec
30 second output rate 165000 bits/sec, 157 packets/sec
355511 packets input, 217590220 bytes, 0 no buffer
Received 6217 broadcasts (5819 multicast)
1542 runts, 0 giants, 0 throttles
1587 input errors, 45 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
275984 packets output, 81672918 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
side B
................
interface GigabitEthernet1/1
description ------data WIRELESS -----
switchport trunk encapsulation dot1q
switchport trunk native vlan 100
switchport trunk allowed vlan 1,10,20,100-103
switchport mode trunk
load-interval 30
speed 100
duplex full
!
interface GigabitEthernet1/2
description ------WIRELESS voice -----
switchport trunk encapsulation dot1q
switchport trunk native vlan 100
switchport trunk allowed vlan 1,100,160,161
switchport mode trunk
speed 100
duplex full
side A
............
interface FastEthernet3/25
description ---- voice WIRELESS ----
switchport trunk encapsulation dot1q
switchport trunk native vlan 100
switchport trunk allowed vlan 1,160,161
switchport mode trunk
speed 100
duplex full
!
interface FastEthernet3/26
description ---- data WIRELESS ----
switchport trunk encapsulation dot1q
switchport trunk native vlan 100
switchport trunk allowed vlan 1,10,20,100-103
switchport mode trunk
load-interval 30
speed 100
duplex full
sideA..........................
ip route 0.0.0.0 0.0.0.0 10.1.1.101
ip route 10.0.0.0 255.255.252.0 192.168.100.101 (data )
ip route 172.16.0.0 255.255.255.0 192.168.99.253 (voice sideB)
interface Vlan1
ip address 192.168.99.1 255.255.255.0
interface Vlan10
description --- side A DATA VLAN ---
ip address 10.1.1.100 255.255.252.0
!
interface Vlan100
description --- SWITCH MANAGEMENT VLAN ---
ip address 192.168.100.1 255.255.255.0
!
interface Vlan161
des sideA voice
ip address 172.16.1.1 255.255.255.0
.................................................
side B
............
ip route 10.1.0.0 255.255.252.0 192.168.100.1 (data side A)
ip route 172.16.1.0 255.255.255.0 192.168.99.1 (voice sideA)
interface Vlan1
ip address 192.168.99.253 255.255.255.0
interface Vlan20
description ---side B DATA VLAN---
ip address 10.0.1.100 255.255.252.0
!
interface Vlan100
description management vlan
ip address 192.168.100.101 255.255.255.0
!
interface Vlan160
description --- side B VOICE VLAN ---
ip address 172.16.0.1 255.255.255.0
........................................
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