Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CCNP Switch > CCNP switch slides 5 > Flashcards

CCNP switch slides 5 Flashcards

1
Q

source

A

http://quizlet.com/3373182/ccnp-switch-deck-5-flash-cards/

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How does packet forwarding work

A

arp for local subnet, if on different subnet, will arp for dgw

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is a proxy arp?

A

for hosts that doesn’t understand routing, the DGW is configured to reply with its own mac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Define HSRP

A

Host Standby Router protocol. Cisco proprietary. Switch is either active, standby, or listen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What address does HSRP send hello packets to?

A

224.0.0.2 (all routers)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the range of HSRP group numbers?

A

0-255

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is unique about HSRP group numbers?

A

They are locally significant on an interface. HSRP1 on one VLAN is different from HSRP1 on another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How does HSRP election work?

A

based on priority (0-255). Default is 100. Highest IP is tie breaker

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the 6 HSRP states?

A

disabled, init, listen, speak, standby, active

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What does the standby HSRP router do?

A

Only the standby monitors the hello messages from the active router

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How often are HSRP hellos sent?

A

3 seconds. Holdtime =3 hellos + 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What happens during HSRP failover?

A

The standby becomes active and stays active by default. Preemption can be configured

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What does the minimum keyword do in HSRP?

A

forces the router to wait for a period of time before attempting overthrow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does the reload keyword do in HSRP?

A

forces the router to wait for a period of time after the switch is reloaded before attempting to overthrow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What types of authentication does HSRP allow?

A

plain text or md5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How does HSRP plain text authentication work?

A

a key string of up to 8 characters is sent. Default is cisco.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

How does HSRP do MD5 authentication?

A

by using a hash of a key string

18
Q

What are the steps to configuring HSRP MD5 authentication?

A

1-name the chain, 2-establish a key number, 3-create the key string, 4-apply the chain to the string

19
Q

How does HSRP port tracking work?

A

When a specific interface is tracked, HSRP reduces it’s priority after a specified interval.

20
Q

What are the caveats for HSRP port tracking?

A

Another router must have a higher HSRP priority and have preemt set up

21
Q

How does HSRP gateway addressing work

A

Each physical interface has a different IP address. All physical interfaces point to a virtual interface called the standby address or VIP

22
Q

How is the HSRP MAC address configured?

A

0000.0c07.acxx where xx is the group number as a 2-digit hex value

23
Q

How can you load-balance with HSRP?

A

create 2 hsrp groups, each with the active router being different switches, then have clients point to each

24
Q

How do you show HSRP status

A

show standby

25
Q

How does every HSRP config command begin?

A

switch(config-if)# standby xx where x= group number

26
Q

How does the standby handle ARP issues after it becomes active?

A

by sending a gratuitous ARP

27
Q

Define VRRP

A

Virtual Router Redundancy Protocol, pretty much the same as HSRP

28
Q

What is a VRRP group?

A

the same as a standby group in HSRP

29
Q

How does every VRRP command begin?

A

switch(config-if)# vrrp xx where xx= group number

30
Q

What is the VRRP master router?

A

the active router. All other routers are in backup state

31
Q

What are the VRRP group and priority numbers?

A

group (0-255), priority (1-254 254 is highest, 100 default)

32
Q

What is the format of the VRRP virtual MAC?

A

0000.5e00.01xx

33
Q

How often are VRRP advertisements sent?

A

1 second. Backup routers can learn the interval from the master

34
Q

How do VRRP routers handle preemption?

A

on by default

35
Q

How does VRRP do tracking?

A

it can’t

36
Q

Where does VRRP send advertisements?

A

multicasts to 224.0.0.18 (VRRP)

37
Q

How does the VRRP master router handle the VIP?

A

the master router can share the VIP

38
Q

What is the VRRP skew time?

A

Hold time is 3xhello. A skew time of 256ms-routerpriority)/256ms is added

39
Q

Define GLBP

A

Gateway load balancing protocol, cisco proprietary

40
Q

How does every GLBP command begin

A

switch(config-if)# glbp xx where xx = group number

41
Q

How does GLBP work?

A

Routers are assigned to common GLBP group. All routers can be active and can load balance

CCNP Switch (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions