What is PAgP silent mode?
The silent mode is used when the switch is connected to a device that is not PAgP-capable and seldom, if ever, sends packets. A example of a silent partner is a file server or a packet analyzer that is not generating traffic.
What is on mode in EtherChannel?
EtherChannel “on” mode makes the interface into an EtherChannel without any negotiation protocols like Port Aggregation Protocol (PAgP) or Link Aggregation Control Protocol (LACP). When using a EtherChannel “on” mode, EtherChannel will be created only when another interface group in EtherChannel “on” mode.
Which mode S of EtherChannel will not transmit LACP or PAgP frames?
A port in the passive mode cannot form an EtherChannel with another port that is also in the passive mode because neither port starts LACP negotiation.
What is channel group mode active?
Channel-group mode active means that LACP will be enabled on the LAG. You would have trouble with this if the other side is not configured for LACP as well. You do not need to use LACP in order for the LAG to work with VLAG or any other protocol really.
What is port channel mode?
The port channel is configured in port-channel configuration mode. Configuration changes to a port channel interface propagate to all Ethernet interfaces in the corresponding channel group. LACP is enabled on the member interfaces by setting the channel-group mode to active or passive.
What is channel group mode desirable?
on means force channelling on, but do not negotiate with the other side. desirable means try and negotiate with the other side, and if he agrees, then enable the channel. If you have on on one side and desirable on the other, then it will not form a channel because no negotiation will take place.
How do I check my port channel settings?
Use the command, show port-channel summary, to verify the number of port-channels already configured. You can have a maximum of 256 port channels on the Cisco Nexus 1000V. Use this procedure to force the physical interface to take on the characteristics of the port channel.
Is PAgP Cisco proprietary?
Port Aggregation Protocol (PAgP) is a Cisco proprietary protocol which is used for the automated, logical aggregation of Ethernet switch ports, known as an Ether Channel. There are two modes of PAgP: Auto mode: it passively negotiates PAgP aggregation.
Can a port in the auto mode form an EtherChannel?
A port in the auto mode can form an EtherChannel with another port in the desirable mode. A port in the auto mode cannot form an EtherChannel with another port that is also in the auto mode because neither port starts PAgP negotiation.
How do I configure the Switch port for non-silent operation?
If your switch is connected to a partner that is PAgP-capable, you can configure the switch port for nonsilent operation by using the non-silent keyword. If you do not specify non-silent with the auto or desirable mode, silent mode is assumed.
What is the difference between the desirable and the auto mode?
• A port in the desirable mode can form an EtherChannel with another port that is in the desirable or auto mode. • A port in the auto mode can form an EtherChannel with another port that is in the desirable mode.