Multilayer Switching: More GLBP, Server Load Balancing and Network Monitoring

GLBP Config Example:

R1(config)#int fast 0/0

R1(config-if)#glbp ? <0-1023> Group number

R1(config-if)#glbp 1 ?
authentication Authentication method
forwarder Forwarder configuration
ip Enable group and set virtual IP address
load-balancing Load balancing method
name Redundancy name
preempt Overthrow lower priority designated routers
priority Priority level
timers Adjust GLBP timers
weighting Gateway weighting and tracking

R1(config-if)#glbp 1 weighting ?
<1-254> Weighting maximum value track Interface tracking

R1(config-if)#glbp 1 weighting 105 ?
lower Weighting lower threshold
upper Weighting upper threshold

R1(config-if)#glbp 1 weighting 105 lower 90 upper 100

R1(config-if)#glbp 1 weighting track 1 decrement 10

R1(config-if)#glbp 1 weighting track 2 decrement 10

*GLBP Tracking is performed in global configuration

Server Load Balancing

Does the same as HSRP/VRRP/GLBP but for servers.

1. Create a server farm: (Real being your real/physical servers that are a part of the farm)
MLS(config)# ip slb serverfarm ServFarm
MLS(config-slb-sfarm)# real
MLS(config-slb-real)# inservice

2. Create a Virtual Server
MLS(config)# ip slb vserver VIRTUAL_SERVER
MLS(config-slb-vserver)# serverfarm ServFarm
MLS(config-slb-vserver)# virtual
MLS(config-slb-vserver)# inservice

3. You can also secure what hosts can access the virtual server:
MLS(config-slb-vserver)# client

Network Monitoring

SNMP and SYSLOG reviews, fairly standard stuff nothing worth noting but can refer back to the Chris Bryant SWITCH study guide.