CCNA 2 - Capitulo 5 - Supplemental Module 1.1

CCNA 2 - Capitulo 5 - Supplemental Module 1.1

1. RAPID SPANNING TREE PROTOCOL (RSTP) 802.1W

   • EXAMPLE - S1# SHOW SPANNING TREE VLAN 1
     • VLAN0001
       • STP ENABLED PROTOCOL RSTP
         • INDICATES RSTP IS ENABLED FOR VLAN 1
     • ROOT ID
       • PRIORITY 24577
         • THE PRIORITY VALUE OF THE ROOT BRIDGE.
       • ADDRESS C4F7.D5F4.9D00:
         • THE MAC ADDRESS OF THE ROOT BRIDGE.
       • COST 19
         • THE COST TO REACH THE ROOT BRIDGE.
         • PORT 1 (FASTETHERNET0/1): THE PORT ON THIS SWITCH USED TO REACH THE ROOT BRIDGE.
       • HELLO TIME 2 SEC
         • THE TIME INTERVAL BETWEEN BPDU (BRIDGE PROTOCOL DATA UNIT) FRAMES SENT BY THE ROOT BRIDGE
       • MAX AGE 20 SEC
         • THE MAXIMUM AGE OF BPDU INFORMATION BEFORE IT'S DISCARDED.
       • FORWARD DELAY 15 SEC
         • THE TIME SPENT IN LISTENING AND LEARNING STATES BEFORE FORWARDING BEGINS.
     • BRIDGE ID
       • PRIORITY 32769 (PRIORITY 32768 SYS-ID-EXT 1):
         • THE DEFAULT PRIORITY IS 32768.
         • VALUE OF THIS BRIDGE (SWITCH) WITH THE SYSTEM ID EXTESION OR EXTENDED SYSTEM ID
       • THE SYS-ID-EXT
         • INDICATING THE SPANNING TREE INSTANCE FOR THIS VLAN.
         • IS THE VLAN ID INDICATING THE STP INSTANCE FOR THIS VLAN
         • THIS ALLOWS THE SAME TOPOLOGY TO HAVE MULTIPLE ROOT BRIDGES
       • ADDRESS C025.5CD7.F500
         • THE MAC ADDRESS OF THIS BRIDGE.
       • HELLO TIME 2 SEC
         • THE TIME INTERVAL BETWEEN BPDU FRAMES SENT BY THIS BRIDGE.
       • MAX AGE 20 SEC
         • THE MAXIMUM AGE OF BPDU INFORMATION BEFORE IT'S DISCARDED.
       • FORWARD DELAY 15 SEC
         • THE TIME SPENT IN LISTENING AND LEARNING STATES BEFORE FORWARDING BEGINS.
       • AGING TIME 300 SEC
         • TIME AFETER WHICH MAC ENTRIES ARE REMOVED FROM THE TABLE IF NO TRAFFIC IS SEEN
     • INTERFACE TABLE
       • INTERFACE
         • PORT / INTERFACE ON THE SWITCH
       • ROLE
         • ROOT , DESIGNATED ETC
       • STS
         • CURRENT STATE OF PORT (FWD - FOR FORWARDING )
       • COST
         • COST ASSOCIATED WITH THE PORT REACH ROOT BRIDGE
       • PRIO.NBR
         • PORT PRIORITY AND PORT NUMBER
       • TYPE
         • P2P , EDGEPORT