This problem confused me for few months, need your help.
Switch: Cisco Catalyst 2924 XL
OS : RedHat 9
NIC : Intel(R) PRO/100+ Management Adapter
Perter's chart:
+--------+ +--------+ trunk+---------+
( internet )-----| router |---------| VLAN |vlan4
( cloud ) eth0| box A |eth1 | switch |------------------+
+--------+ +--------+ +---------+ |
vlan2| v2| |vlan3 |
| | | |
+--------+ | +-------+ |
| | | |
eth0| eth0| eth0| eth0|
+--------+ +--------+ +--------+ +--------+
| client | | client | | client | | server |
| box B | | box C | | box D | | box E |
+--------+ +--------+ +--------+ +--------+
My confiration is simple:
ifconfig eth1 192.168.1.73 up
vconfig set_name_type DEV_PLUS_VID_NO_PAD
vconfig add eth1 2
vconfig add eth1 3
vconfig add eth1 4
brctl addbr br0
#brctl stp br0 off # may not be what you want
brctl addif br0 eth1.2
brctl addif br0 eth1.3
ifconfig br0 192.168.0.1
ifocnfig eth1.2 up
ifconfig eth1.3 up
ifconfig br0 up
echo 1 > /proc/sys/net/ipv4/ip_forward
--------------------------------
I want to test connectivity between box B and Box A.
Vlan configuration is ok, i can ping each other without packet loss.
But after bring up bridge, most ping packet is lost.
ip address 192.168.1.200 is pc in vlan0.
some output from my environment:
#ifconfig -a
br0 Link encap:Ethernet HWaddr 00:90:27:8C:3F:E7
inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:31 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1550 (1.5 Kb) TX bytes:0 (0.0 b)
eth1 Link encap:Ethernet HWaddr 00:90:27:8C:3F:E7
inet addr:192.168.1.73 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:430 errors:0 dropped:0 overruns:0 frame:0
TX packets:300 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:26787 (26.1 Kb) TX bytes:21408 (20.9 Kb)
Interrupt:5 Base address:0xdf00 Memory:feaff000-feaff038
eth1.2 Link encap:Ethernet HWaddr 00:90:27:8C:3F:E7
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:29 errors:0 dropped:0 overruns:0 frame:0
TX packets:120 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1566 (1.5 Kb) TX bytes:7772 (7.5 Kb)
eth1.3 Link encap:Ethernet HWaddr 00:90:27:8C:3F:E7
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:44 errors:0 dropped:0 overruns:0 frame:0
TX packets:105 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2376 (2.3 Kb) TX bytes:6752 (6.5 Kb)
# uname -a
Linux ws 2.4.20-8 #1 Thu Mar 13 17:18:24 EST 2003 i686 athlon i386 GNU/Linux
# lsmod
Module Size Used by Not tainted
8021q 16872 2 (autoclean)
bridge 24140 1 (autoclean)
autofs 12948 0 (autoclean) (unused)
e100 59652 1
sr_mod 17912 0 (autoclean)
cdrom 33472 0 (autoclean) [sr_mod]
usb-storage 68628 0
scsi_mod 106200 2 [sr_mod usb-storage]
keybdev 2880 0 (unused)
mousedev 5428 0 (unused)
hid 21700 0 (unused)
input 5792 0 [keybdev mousedev hid]
ehci-hcd 19592 0 (unused)
usb-ohci 21160 0 (unused)
usbcore 77696 1 [usb-storage hid ehci-hcd usb-ohci]
ext3 69984 2
jbd 51220 2 [ext3]
[root@ws root]# rpm -qa |grep bri
bridge-utils-0.9.3-8
bridge-utils-devel-0.9.3-8
[root@ws root]# rpm -qa |grep vconf
vconfig-1.6-2
[root@ws root]#
#brctl show
bridge name bridge id STP enabled interfaces
br0 8000.0090278c3fe7 yes eth1.2
eth1.3
#brctl showmacs br0
port no mac addr is local? ageing timer
2 00:04:4d:da:99:10 no 1.56
2 00:90:27:8c:3f:e7 yes 0.00
1 00:90:27:8c:3f:e7 yes 0.00
# brctl show stp
br0
bridge id 8000.0090278c3fe2
designated root 8000.0090278c3fe2
root port 0 path cost 0
max age 20.00 bridge max age 20.00
hello time 2.00 bridge hello time 2.00
forward delay 15.00 bridge forward delay 15.00
ageing time 300.00 gc interval 4.00
hello timer 1.20 tcn timer 0.00
topology change timer 0.00 gc timer 1.20
flags
eth1.2 (1)
port id 8001 state forwarding
designated root 8000.0090278c3fe2 path cost 100
designated bridge 8000.0090278c3fe2 message age timer 0.00
designated port 8001 forward delay timer 0.00
designated cost 0 hold timer 0.00
flags
eth1.3 (2)
port id 8002 state forwarding
designated root 8000.0090278c3fe2 path cost 100
designated bridge 8000.0090278c3fe2 message age timer 0.00
designated port 8002 forward delay timer 0.00
designated cost 0 hold timer 0.00
flags
[root@ws root]# ping 192.168.1.200
PING 192.168.1.200 (192.168.1.200) 56(84) bytes of data.
From 192.168.1.73 icmp_seq=12 Destination Host Unreachable
From 192.168.1.73 icmp_seq=13 Destination Host Unreachable
From 192.168.1.73 icmp_seq=14 Destination Host Unreachable
From 192.168.1.73 icmp_seq=15 Destination Host Unreachable
From 192.168.1.73 icmp_seq=16 Destination Host Unreachable
From 192.168.1.73 icmp_seq=17 Destination Host Unreachable
64 bytes from 192.168.1.200: icmp_seq=18 ttl=255 time=0.670 ms
64 bytes from 192.168.1.200: icmp_seq=23 ttl=255 time=0.469 ms
64 bytes from 192.168.1.200: icmp_seq=34 ttl=255 time=0.468 ms
--- 192.168.1.200 ping statistics ---
45 packets transmitted, 3 received, +6 errors, 93% packet loss, time 44021ms
rtt min/avg/max/mdev = 0.468/0.535/0.670/0.098 ms, pipe 3
[root@ws root]#
[root@ws root]# brctl delif br0 eth1.2
[root@ws root]# brctl delif br0 eth1.3
[root@ws root]# ping 192.168.1.200
PING 192.168.1.200 (192.168.1.200) 56(84) bytes of data.
64 bytes from 192.168.1.200: icmp_seq=1 ttl=255 time=0.504 ms
64 bytes from 192.168.1.200: icmp_seq=2 ttl=255 time=0.470 ms
64 bytes from 192.168.1.200: icmp_seq=3 ttl=255 time=0.469 ms
64 bytes from 192.168.1.200: icmp_seq=4 ttl=255 time=0.470 ms
64 bytes from 192.168.1.200: icmp_seq=5 ttl=255 time=0.468 ms
--- 192.168.1.200 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4010ms
rtt min/avg/max/mdev = 0.468/0.476/0.504/0.019 ms
[root@ws root]#
--------------------------------
When bridge is up, 99% ping packet for box B to box A is lost,but box B did
get right mac address of box A.
I have also tried
ifconfig eth1.2 hw ehter 00:90:27:8C:3F:E2
ifconfig eth1.2 hw ehter 00:90:27:8C:3F:E3
but no lucky.
Sorry for such a long post, any hints is appreciated.
Hello, Ard van Breemen , I think catalyst 2924 XL support IVL,do you think so?
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