Routing & Switching

if anyone has a question about routing troubleshoot

anyone?

Please wait, the engineer will take care of your problem later

Route faults are classified into various types. You can locate the faults based on the fault symptoms.

why IS-IS wasn't use in enterprise and mostly used by ISP.
I think it's easy should be used in enterprise companies.

in OSPF Area0 is always backbone.

GOOD

four settings must be configured if you want to in "UP" state your interface link

1) Encapsulation HDLC enabled or (PPP)
2) Keepalive 10 enabled
3) clock rate 200000 (if it's connected with DCE wire) (200000/400000)
4) undo shutdown (no shutdown)

four settings must be configured if you want to in "UP" state your interface link

1) Encapsulation HDLC enabled or (PPP)
2) Keepalive 10 enabled
3) clock rate 200000 (if it's connected with DCE wire) (200000/400000)
4) undo shutdown (no shutdown)

Routing problems tend to emerge when you’re first setting up a new piece of network equipment, and when something has failed. Usually routing problems are caused by some sort of configuration or design error. Troubleshooting routing problems is tricky because the usual tools like ping and traceroute don’t always tell you what you need to know.

The originating device puts three important parameters into the IP packet header:

The source IP address, which is the address of the device itself
The destination IP address, which is where the packet is going
The IP protocol, such as UDP or TCP or ICMP


You need to know where are you troubleshooting from, locate the problem specifically, define both sides, sender and receiver, check the transport layer issue to know which protocol is being used for sending/receiving the segment .