Hello = 3 seconds
Dead = 10 seconds
#interface fa0
#standby <group> timers x y
Where x is a value between <1-254> seconds
Where y is a value between <2-255> seconds
#show standby
=========================
EIGRP
Hello = 5 seconds
Dead = 15 seconds
#interface fa0
#ip hello-interval eigrp <AS> x
#ip hold-time eigrp <AS> x
Where x is a value between <1-65535> seconds
#show ip eigrp interfaces detail fa0
=========================
OSPF
Ethernet:
Hello = 10 seconds
Dead = 40 seconds
Wait = 40 seconds
Retransmit = 5 seconds
(Dead time is automatically set to 4 x the hello interval)
Non-broadcast:
Hello = 30 seconds
Dead = 120 seconds
#interface fa0
#ip ospf hello-interval x
#ip ospf dead-interval x
#ip ospf retransmit-interval x
Where x is a value between <1-65535> seconds
=========================
BGP Route Selection Criteria
1 Weight
2 Local Preference
3 Network or Aggregate
4 Shortest AS_PATH
5 Lowest origin type
6 Lowest multi-exit discriminator (MED)
7 eBGP over iBGP
8 Lowest IGP metric
9 Multiple paths
10 External paths
11 Lowest router ID
12 Minimum cluster list
13 Lowest neighbor address
2 Local Preference
3 Network or Aggregate
4 Shortest AS_PATH
5 Lowest origin type
6 Lowest multi-exit discriminator (MED)
7 eBGP over iBGP
8 Lowest IGP metric
9 Multiple paths
10 External paths
11 Lowest router ID
12 Minimum cluster list
13 Lowest neighbor address
=========================
Routing Administrative Distance
| Connected interface | 0 |
| Static route | 1 |
| Enhanced Interior Gateway Routing Protocol (EIGRP) summary route | 5 |
| External Border Gateway Protocol (BGP) | 20 |
| Internal EIGRP | 90 |
| IGRP | 100 |
| OSPF | 110 |
| Intermediate System-to-Intermediate System (IS-IS) | 115 |
| Routing Information Protocol (RIP) | 120 |
| Exterior Gateway Protocol (EGP) | 140 |
| On Demand Routing (ODR) | 160 |
| External EIGRP | 170 |
| Internal BGP | 200 |
| Unknown* | 255 |
