Timers 7/28 Flashcards
Rapid STP MaxAge Timer
6 seconds
Normal STP - Hello Interval
2 seconds
Normal STP - MaxAge Timer
20 seconds (10 times the Hello Timer)
Normal STP - Forward Delay
15 seconds
Normal STP - Listening State
15 seconds
Normal STP - Learning State
15 seconds
EIGRP Hello Timer for fast link
5 seconds
EIGRP Hold Down Timer for fast link
15 seconds
OSPF Hello Timer on a Broadcast Network
10 seconds
OSPF Dead Timer on a Broadcast and Pt-to-Pt Network
40 seconds
LSA refreshed by the source
30 minutes
Ethernet keepalive
10 seconds
HDLC keepalive
10 seconds
RIP Updates
30 seconds
VTP Updates
5 minutes
Access Point Keepalives
30 seconds
OSPF Hello on Non-broadcast Networks
30 seconds
OSPF Dead Interval on Non-broadcast Networks
120 seconds (2 minutes)
BGP Hold Timer
180 seconds (3 minutes)
BGP Keepalive Timer
60 seconds
Wireless AP to WLC keepalive
30 seconds
GRE VPN Tunnel keep alive
10 seconds with 3 retries
Default Exec Timeout for line vty, con, aux
10 minutes
Multicast: Default Max Response Time in a General Membership Query
10 seconds
In Mullticast: how long does it take in PIM-DM for Prunes to expire?
3 minutes
In multicast, what is the default DR Hold timer
105 seconds by default (3.5 times the 30 second Hello timer)
In Multicast, what is the default DR Hello timer?
30 seconds
In multicast, PIM Hello messages default
every 30 seconds
LSA removed from the LSDB
60 minutes
Multicast: the default Cisco-RP-Announce interval
60 seconds
Multicast: Cisco-RP-Discovery interval
60 seconds
Multicast: BSR sends BSR messages with group-to-RP mapping cache
60 seconds
BGP Hold Timer during the Active state
4 minutes
DTP Advertisements
Every 30 seconds
VTP Summary Advertisements
Every 5 minutes
LACP advertisements (original standard)
Every 30 seconds
LACP Advertisements in Fast mode
Every second
Multicast Querier Interval
60 seconds
IGMP Querier Timeout
120 seconds (twice the query interval)
HSRPv1 and v2 default Hello timer
3 seconds
HSRPv1 and 2 default Hold timer
10 seconds (~ 3 times the hello timer)
VRRP default advertisement interval
every second
VRRP Master-down interval (hold timer)
3 seconds (3 times the advertisement interval)
GLBP Hello messages
every 3 seconds
EIGRP Hold Down Timer for slow link
180 seconds (3 times the Hello timer)
EIGRP Hello timer for a slow link
60 seconds
OSPF Hello Timer on a Point-to-point Network
10 sec
OSPF Hello Timer on Point-to-multipoint network
30
OSPF Dead Interval on Point-to-multipoint networks
120 sec
OSPF Hello on Broadcast Networks
10 sec
OSPF Dead Interval on Broadcast Networks
40 sec
OSPF Dead Interval on Point-to-point networks
40 sec
UDLD Message Interval
15 seconds
EIGRP Active Timer
180 seconds - 3 minutes
OSPF Wait Time (the time a router waits before having a DR election when it first sees a Hello msg with DR Router 0.0.0.0)
40 seconds (equivalent to the Dead time)
Default MPLS LDP Hello interval
5 seconds
Default MPLS LDP Hello Hold timer
15 seconds
What is the default NHRP cache timer?
2 hours
