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- What are some critical differences between HSRP and VRRP?
HSRP must use a separate virtual IP as the shared IP address VRRP on the other hand, can use one of the router's physical IPs as the shared IP However, this is not mandatory for VRRP, and it's probably better to use a virtual IP anyway Timers By default, HSRP uses a 3-second hello timer, while VRRP uses a 1-second advertisement interval
- Cisco Learning Network
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- Is there a way to speed up HSRP preempt? - Cisco Learning Network
When R1 comes back, it takes time for the HSRP adjacency to form to R2 before it can become active Lowering to sub-second hellos will speed up this process since the discovery of the neighbors is faster, but you eventually hit a hard limit that is bound by how fast the router can actually process the HSRP packets (think CPU power and other internal processes)
- Trouble with HSRP Configuration and VLAN Communication
Hi @haiqalshii ! You must verify if there is a communication between DSW devices (HSRP packets) If both devices are "HSRP active" for a vlan or the traffic of PCs have to pass for a Blocled port, then, the STP is the issue and you must elect another election of Port Roles to avoid the block of HSRP packets or traffic of PCs
- HSRP - What is the role of a LISTENING router - Cisco Learning Network
The routers HSRP load balancing established for us Example: Two routers HSRP 1 has priority: 128, at the time the load balancing is 50% for both HSRP make management load on the groups Now GLBP load balancing automatically, but the load balancing is subject to AVG Router The load balancing can be: 1 Round-robin 2 Weighted 3 Host Dependent
- Reg HSRP V1 vs HSRP V2 - Cisco Learning Network
With HSRP version 1, you cannot use HSRP active hello messages to identify which physical router sent the message because the source MAC address is the HSRP virtual MAC address The HSRP version 2 packet format includes a 6-byte identifier field that is used to uniquely identify the sender of the message
- HSRP preempt - Cisco Learning Network
The standby track command allows you to specify another interface on the router for the HSRP process to monitor in order to alter the HSRP priority for a given group If the line protocol of the specified interface goes down, the HSRP priority is reduced
- HSRP standby router serving traffic - Cisco Learning Network
Each of the HSRP routers will normally not send out any Traffic with their HSRP addresse, independently of if they are HSRP active or HSRP standby And the IP addresses listet in the tracepath output are the *sender* addresses of the "ICMP time exceeded" packets, that the routers "on the way" will send, when the TTL of the packet send from
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