1 / 6

HSRP

HSRP. Redundancy & Failover: When one router or switch fails the other redundant router or switch takes over so that the connectivity is not interfered. Three protocol for redundancy are HSRP VRRP GLBP HSRP: Hot Standby Router Protocol created in 1994 It is a Cisco proprietary protocol

tosca
Download Presentation

HSRP

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. HSRP Redundancy & Failover: When one router or switch fails the other redundant router or switch takes over so that the connectivity is not interfered. Three protocol for redundancy are • HSRP • VRRP • GLBP • HSRP: Hot Standby Router Protocol created in 1994 • It is a Cisco proprietary protocol • Hello timer is 3 Sec • Holdon Timer is 10 Sec

  2. HSRP VRRP: Virtual Router Redundancy Protocol created in 1999 • Its Non proprietary • Works between various vendors and not limited to one. • Created by IETF • Hello Timer 1 sec • Holdon Timer 3 sec GLBP: Gateway Load Balance Protocol created in 2005 Cisco proprietary Same Features as HSRP Allows Load Balancing

  3. HSRP Scenario: Two Switches (Layer 3) A & B Switch A: Switch A has Vlan 50 as interface and its IP address is set to 192.168.100.2 Shared Group 10 Switch B: Switch B has Vlan 50 as interface and its IP address is set to 192.168.100.3 Shared Group 10 Virtual IP Address is 192.168.100.1

  4. HSRP Virtual IP Address & Virtual Mac Address: In Virtual Mac Address e.g 0000.0C07.AC0A First 6 are vendor ID, 07AC is HSRP ID and 0A is Group 10 (HEX) It is generated on both Switches , so when the Active Switch fails the IP becomes available on Standby Switch. Clients don’t need to change any Gateway settings on their devices. Hello Messages are sent every 3 sec , Gateway is assumed Dead if no response is received in 10 secs. However we can tune the timers for fast processing.

  5. HSRP HSRP CONFIGURATION: A quick note : vlan 50 and intvlan 50 are different vlan 50 is only the segementation of ports (layer 2) , intvlan 50 is routed interface for that vlan. SwitchA(Config)# intvlan 50  [intvlan 50 will take us into routed int] SwitchA(Config-if)# standby 10 ip 192.168.100.1  Note for above [10 is Group number, standby command is used to enable HSRP, Virtual IP / Phantom IP is 192.168.100.1] Note: Every Switch will have default priority of 100 so to make switch active we higher the priority Switch A(config-if)# standby 10 priority 150  Exit

  6. HSRP HSRP CONFIGURATION: On Switch B SwitchB(Config)# intvlan 50  [intvlan 50 will take us into routed int] SwitchB(Config-if)# standby 10 ip 192.168.100.1  Note for above [10 is Group number, standby command is used to enable HSRP, Virtual IP / Phantom IP is 192.168.100.1] SwitchB(config-if)# standby 10 priority 100  Exit HSRP is Setup we can verify it by pinging to virtual ip and then we can disconnect Switch A and can see take over from Switch B. Thanks, Hyp3ri0n www.itpings.com

More Related