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03-03-2011 04:04 AM - edited 03-03-2011 04:47 AM
03-03-2011 04:04 AM - edited 03-03-2011 04:47 AM
5500-EI - Packets go wrong port - ARP Problem? Flash corrupt?
I've 2 Stacks of 3x SuperStack 4 Switch 5500-EI PWR 28-Port Software Version 3Com OS V3.02.00s56.
Device 1 at Port Z <> Stack1 <=> 4xGb LACP-Trunk <=> Stack2 <=> Device2 on Port X and Device3 on Port Y
Port Z: ( Device with 10.3.1.247/24)
interface Ethernet1/0/45
poe enable
stp edged-port enable
port access vlan 2
undo jumboframe enable
apply qos-profile default
Port X:
interface GigabitEthernet1/0/16
stp edged-port enable
broadcast-suppression 10
port access vlan 2
undo jumboframe enable
apply qos-profile default0001
Port Y: (Device with IP 10.3.1.205/24)
interface GigabitEthernet1/0/8
stp edged-port enable
broadcast-suppression 10
port access vlan 2
undo jumboframe enable
apply qos-profile default0001
While monitoring with tethereal at Port X i see the traffic for Port Y
22.728871 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
24.729487 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
25.729555 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
26.729919 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
87.797523 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
88.797327 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
89.797547 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
90.797808 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
91.807956 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
92.817851 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
93.818168 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
94.817846 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
95.818125 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
96.818320 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
97.818601 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
98.818368 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
99.818662 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
100.818816 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
101.819033 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
102.819308 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
103.820089 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
140.929792 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
143.931084 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
144.930767 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
145.931135 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
146.951693 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
147.971634 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
148.992102 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
188.028108 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
189.028257 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
190.028525 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
191.028811 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
192.028580 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
193.028782 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
194.028973 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
195.029214 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
196.029105 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
197.029137 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
198.029459 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
199.029164 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
200.029401 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
201.029618 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
202.029386 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
203.029695 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
204.029634 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
205.029885 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
206.029793 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
207.030132 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
208.030204 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
209.030454 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
210.030360 10.3.1.247 -> 10.3.1.205 ICMP Echo (ping) reply
You see that all went right for ~ 40 Seconds and then it packets went wrong. Why?
- both mac-adresses are dynamic in the arp table all the time
- gratiuous arp is enabled by default
- Mac address aging time: 300s
- proxy arp is not used anywhere
Any Help Will be greatly appreciated!