10-19-2006 02:26 PM - edited 03-05-2019 12:21 PM
question, why isn't glbp supported on 3750-E? doesn't make sense to support it?
10-19-2006 07:42 PM
Well, I can't answer why they haven't added it yet, but they have been adding support very gradually. At first it was only on 7200s, then they added 6500s. I guess maybe in a few years we mat get it on more hardware.
-Eric
10-24-2006 11:45 AM
I have two 3825 routers which seemed to run glbp fine, however, I could not communicate to the 3750 switch behind the routers after implementing glbp. HSRP seems to work just fine. Is that what you meant by glbp is not supported on the 3750? If not, does anyone have an idea why implementing glbp on the routers would break connectivity to the switch?
thanks
02-13-2014 06:43 AM
I have a simular problem..
HSRP runs fine, but reconfigure with GLBP, and anyone in the network cannot ping the switches, or any users on the LAN.
They can ping the router IP's fine.
Users on the LAN cannot ping the router IP's at all.
Switch:
Platform: cisco WS-C3750G-12S, Capabilities: Router Switch IGMP
C3750 Software (C3750-ADVIPSERVICESK9-M), Version 12.2(37)SE,
Routers:
CISCO3925
c3900-universalk9-mz.SPA.151-4.M4
Config on Router 1
track 100 interface Serial1/0 line-protocol
Interface Gig0/0
glbp 1 ip 10.178.32.6
glbp 1 priority 110
glbp 1 preempt delay minimum 300
glbp 1 load-balancing host-dependent
glbp 1 authentication text CUSTOMER
glbp 1 weighting track 100 decrement 5
Config on Router 2
Interface Gig0/0
glbp 1 ip 10.178.32.6
glbp 1 priority 105
glbp 1 load-balancing host-dependent
glbp 1 preempt delay minimum 5
glbp 1 authentication text CUSTOMER
sho arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 10.178.32.1 175 0000.0c07.ac64 ARPA GigabitEthernet0/0
Internet 10.178.32.2 167 3037.a6a3.0ec1 ARPA GigabitEthernet0/0
Internet 10.178.32.3 166 3037.a6a3.8bc1 ARPA GigabitEthernet0/0
Internet 10.178.32.4 158 8843.e118.0e00 ARPA GigabitEthernet0/0
Internet 10.178.32.5 - d48c.b5bb.7a80 ARPA GigabitEthernet0/0
Internet 10.178.32.6 - 0000.0c07.ac01 ARPA GigabitEthernet0/0
Internet 10.192.5.65 - d48c.b5bb.7a80 ARPA GigabitEthernet0/
02-13-2014 10:22 AM
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That's the type of question that only Cisco can answer. It could be, the 3750 architecture is an impediment; it could be with 3750 stacking, who needs it; it could be with a L3 switch Cisco doesn't see the need to load balance hosts; it could be . . .
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