CCIE SEC General Networking
Basics
OSI Layers
TCP/IP Protocols
ICMP
Protocol 1
Types
0 Echo Reply
3 Destination Unreachable
4 Source Quench
5 Redirect
8 Echo Request
11 TTL Expired
TCP
Protocol 6
UDP
Protocol 17
Switching
VTP
Modes
Server
DEFAULT!
Client
Transparent
All VLANS are local
Layer 2 Frames
Domains
Revision Number
To re-Set to 0
Change Domain Name
Change Switch Mode
VLANS in domain
Paramaters
Mode
Version 2
Version 2
Pruning
VLANS
Spanning Tree
BPDU
Notication Frames
Note Generated by spanning-tree portfast
Config Frames
Set with Source Mac & root bridge MAC
Security
Root Gurad
Stops new root Bridge BPDUs, allows switches to connect
BPDU Guard
Rejects ANY BPDU
Loop Gurad
Stops Loops forming if no BPDU recieved
UDLC
UNI-Directional Loop Detection
used to detect if tx or rx breaks
Normal Mode = Log
Aggressive Mode = Err_Disable Port
BPDU Filter
Filters Outbound BPDU
Trunking
Routing Protocols
RIP
Distance Vector
UDP 520
Admin Distance 120
Load Balance upto 16 paths
Version 1
Broadcast Updates
Classfull
No Authentication
Version 2
Classless, VLSM = ok!
Auto Summary on Class
MULTICAST - 224.0.0.8
Authentication
EIGRP
Admin Distance 90
IGRP
Admin Distance 100
OSPF
Admin Distance 110
BGP
IP Multicast
CCIE SEC General Networking
Added: 2008-12-15 09:42:21
From: (Joined 2008-12-15 05:32:23)
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CCIE SEC General Networking