2012年思科认证（CCIE）考试知识复习指导6
6. EtherChannelwｗw.ExamＷ.CoM
The CISCO proprietary negotiation for EtherChannel is know as Port Aggregation Protocol(PagP)
The open standard for EtherChannel negotiation is Link Aggregation Control Protocol(LACP), and is defined in IEEE 802.3ad
Mode
Result
On
PagP and LACP disabled (no negotiation)
Desirable
Active negotiate PagP
Auto
Passively listen for PaGP
Active
Actively negotiate LACP
Passive
Passively listen for LACP
7. Configuring VLAN Maps
This section describes how to configure VLAN maps, which is the only way to control filtering within a VLAN. VLAN maps have no direction. To filter traffic in a specific direction by using a VLAN map, you need to include an ACL with specific source or destination addresses. If there is a match clause for that type of packet (IP or MAC) in the VLAN map, the default action is to drop the packet if the packet does not match any of the entries within the map. If there is no match clause for that type of packet, the default is to forward the packet.
8. VTP pruning
Traffic for VLANs not locally assigned should not be received over any trunk links throughout the VTP domain
Vtp pruning 在VTP SERVER的SWITCH上配置