a***n
发帖数: 262 | 1 Network Topology
client------Virtual FW(Routed)------F5 BigIP------Application Server
Issue Statement: The load of webpage is very slow. Wireshark capture showed
a lot of checksum errors and retransmissions.
How do you isolate the issue to be at Firewall, F5 load balancer or
Application Server?
I did the following
FW F5
0 0 working good
0 1 ?
1 0 working good
1 1 working slow
Do I still need to perform the test without FW but with F5? how about your
opinion? I will post the answer later on. :-) |
z**r
发帖数: 17771 | 2 turn on tcpdump on FW, BIG-IP and the server, you will find the root cause
easily
showed
【在 a***n 的大作中提到】
: Network Topology
: client------Virtual FW(Routed)------F5 BigIP------Application Server
: Issue Statement: The load of webpage is very slow. Wireshark capture showed
: a lot of checksum errors and retransmissions.
: How do you isolate the issue to be at Firewall, F5 load balancer or
: Application Server?
: I did the following
: FW F5
: 0 0 working good
: 0 1 ?
|
x*********n
发帖数: 28013 | 3 tcpdump在real firewall上能用么？还是只能在linux上用？
cause
【在 z**r 的大作中提到】
: turn on tcpdump on FW, BIG-IP and the server, you will find the root cause
: easily
:
: showed
|
z**r
发帖数: 17771 | 4 没有tcpdump也有其他类似的工具，很多设备也都是基于linux的，像lz提到的big-ip
【在 x*********n 的大作中提到】
: tcpdump在real firewall上能用么？还是只能在linux上用？
:
: cause
|
x*********n
发帖数: 28013 | 5 嗯。ios和linux也挺像的。
我现在看什么东西都很像。
【在 z**r 的大作中提到】
: 没有tcpdump也有其他类似的工具，很多设备也都是基于linux的，像lz提到的big-ip
|
