Q) What is Etherchannel?
Etherchannel is a method of logical bundling of two or more physical links.
Q) What are the types of Etherchannel?
1) PAgP (Port Aggregation Protocol) ( Dynamic Etherchannel)
2) LACP (Link Aggregation Protocol) ( Dynamic Etherchannel)
3) Manual Etherchannel (ON) ( Static Etherchannel)
Q) What are the advantages of Etherchannel?
--> We can utilize all the links as STP will not block the link.
--> Increased Speed.
--> Redundancy ( The Etherchannel continues to work till all the links go down).
Q) What is the difference between PAGP and LACP in Etherchannel?
--> PAGP is Cisco Proprietary and LACP is an open standard.
Q) How many Links we can bundle using Etherchannel?
8
Q) What are the requirements to configure EtherChannel between two devices?
--> Same Duplex settings
--> Same Speed
--> Same Native and Allowed VLAN
--> Same Switchport Mode (Access Mode or Trunk Mode)
Q) Why port in Etherchannel goes into a suspended state?
A: It goes into Suspended state when the above requirements do not match.
Q) Why Dynamic Etherchannel is recommended compared to Static Etherchannel?
--> Dynamic Etherchannel checks all the parameters which were mentioned above before forming the EtherChannel.
--> There is a less chance of loop if we use dynamic EtherChannel instead of static EtherChannel.
Q) What are the Modes present in PAGP and LACP Etherchannel?
PAGP
Desirable ( The interface which is configured in the mode will actively try to form the EtherChannel)
Auto ( The interface which is configured in the mode will passively try to form the EtherChannel)
LACP
Active ( The interface which is configured in the mode will actively try to form the EtherChannel)
Passive ( The interface which is configured in the mode will passively try to form the EtherChannel)
Q) What are the modes configured in Static/Manual Etherchannel?
ON ( The interface tries to form EtherChannel without checking any parameters)
OFF ( The interface does not try to form the EtherChannel in this mode)
Q) Is it possible to configure the Etherchannel between two different devices such as Router and Switch or Switch and Server?
A: Yes
Q) How many ways you can configure the Etherchannel?
--> Layer2 Etherchannel ( No IP address is assigned to the Etherchannel)
--> Layer3 Etherchannel ( IP address is assigned to the Etherchannel)
Q) What are the load balancing methods supported by Etherchannel?
--> Dst-ip
--> Src-ip
--> Dst-mac
--> Src-mac
--> Dst-port
--> Src-port
--> Src-dst-ip
--> Src-dst-mac
--> Src-dst-port
Q) What is the default Port Priority value in PAGP Etherchannel?
A: 128
Q)
Md.Kareemoddin
CCIEE# 54579
Connect with me on Linkedin: https://www.linkedin.com/in/mahmmad-kareemoddin-7a177342/
Etherchannel is a method of logical bundling of two or more physical links.
Q) What are the types of Etherchannel?
1) PAgP (Port Aggregation Protocol) ( Dynamic Etherchannel)
2) LACP (Link Aggregation Protocol) ( Dynamic Etherchannel)
3) Manual Etherchannel (ON) ( Static Etherchannel)
Q) What are the advantages of Etherchannel?
--> We can utilize all the links as STP will not block the link.
--> Increased Speed.
--> Redundancy ( The Etherchannel continues to work till all the links go down).
Q) What is the difference between PAGP and LACP in Etherchannel?
--> PAGP is Cisco Proprietary and LACP is an open standard.
Q) How many Links we can bundle using Etherchannel?
8
Q) What are the requirements to configure EtherChannel between two devices?
--> Same Duplex settings
--> Same Speed
--> Same Native and Allowed VLAN
--> Same Switchport Mode (Access Mode or Trunk Mode)
Q) Why port in Etherchannel goes into a suspended state?
A: It goes into Suspended state when the above requirements do not match.
Q) Why Dynamic Etherchannel is recommended compared to Static Etherchannel?
--> Dynamic Etherchannel checks all the parameters which were mentioned above before forming the EtherChannel.
--> There is a less chance of loop if we use dynamic EtherChannel instead of static EtherChannel.
Q) What are the Modes present in PAGP and LACP Etherchannel?
PAGP
Desirable ( The interface which is configured in the mode will actively try to form the EtherChannel)
Auto ( The interface which is configured in the mode will passively try to form the EtherChannel)
LACP
Active ( The interface which is configured in the mode will actively try to form the EtherChannel)
Passive ( The interface which is configured in the mode will passively try to form the EtherChannel)
Q) What are the modes configured in Static/Manual Etherchannel?
ON ( The interface tries to form EtherChannel without checking any parameters)
OFF ( The interface does not try to form the EtherChannel in this mode)
Q) Is it possible to configure the Etherchannel between two different devices such as Router and Switch or Switch and Server?
A: Yes
Q) How many ways you can configure the Etherchannel?
--> Layer2 Etherchannel ( No IP address is assigned to the Etherchannel)
--> Layer3 Etherchannel ( IP address is assigned to the Etherchannel)
Q) What are the load balancing methods supported by Etherchannel?
--> Dst-ip
--> Src-ip
--> Dst-mac
--> Src-mac
--> Dst-port
--> Src-port
--> Src-dst-ip
--> Src-dst-mac
--> Src-dst-port
Q) What is the default Port Priority value in PAGP Etherchannel?
A: 128
Q)
Md.Kareemoddin
CCIEE# 54579
Connect with me on Linkedin: https://www.linkedin.com/in/mahmmad-kareemoddin-7a177342/
What's iss VTP
ReplyDeleteVlan tracking protocol is a acisco priorotry protocol used by cisco switch exchange vlan information
VTP is uses to a synchronise
Vlan information vlan ID or vlan name with switch inside some VTP domain