ccna y ccnp diferencias

ccna y ccnp diferencias.RSTP converges much faster than the original IEEESTP (802.1d) on a point-to-point (P2P) link.13.3.4 Configuring RSTPCisco switches support three types of STP, as shown in Table 13.2. On Cisco switches, the default configuration is one STP instance per VLAN, the same root switch for all VLANs, and no load sharing. This book only briefly describes the configuration of PVRST+. To enable PVRST+, use the following command. Switch(config)# spanning-tree moderapid-pvst Exam Essentials To enable RSTP on an IOS switch, use the command spanning-tree mode rapid-pvsto Once PVRST+ is enabled, you can use the following command to view the STP O for a specific VLAN Switch# show spanning-tree vlan VLAN_# [detail]The following is sample output from this command. Switch# showspanning-tree vlan 10 VLAN0010 Spanning tree enabled protocol rstp Root ID Priority 32768 This bridge is root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32768 (priority 32768 sys-id-ext 10) Address 0000 . Old . 1111 Hello Time 2 sec Mag Age 20 sec Forward Delay 15 sec Aging Time 300 Interface Role Sts Cost Pior.Nbr TypeFa0/l Desg FWD 19 128.1 P2p FaO/2 Desg FWD 19 128.2 P2p FaO/3 Desg FWD 19 128.3 P2pTable 13.2 SIP Type STP DescriptionPVST+ One 802.IdSTP instance per VLAN, using Cisco-specific extensions (PortFast, UpiinkFast, and BackboneFast)PVRST+ - one 802.1W (RSTP) instance per VLANMultiservice Transport Platform (MSTP) 802.Is, known as Multi-STP, combines Cisco-specific PVST+ and IEEE standards in oneIn this example, the current switch is the root switch for VLAN 10, using RSTPo notice that all of its ports are Designated Ports (Desg) and in Forwarding State (FWD) - if all active ports are so, it means that the switch is the root switch, and as you can see from the output on line 4, it is indeed so (the current bridge is the root bridge).