IS GLBP SUPPORTED ON NEXUS 5500

mcg-tulsa · ‎09-28-2012

I am wondering if GLBP is supported on nexus 5500

I have 4 5548s I want to run glbp on but the feature is not listed to activate.

version 5.2(1)N1(1a)

I have features hsrp and vrrp but no glbp. According to what I read from Cisco you don't need special licensing for it. So why can I not activate the feature?

MCG-TUL-CORE01(config)# show feature | grep glbp

glbp 1 disabled

MCG-TUL-CORE01(config)# feature glbp

^

% Invalid command at '^' marker.

MCG-TUL-CORE01(config)# feature ?

bgp Enable/Disable Border Gateway Protocol (BGP)

cts Enable/Disable CTS

dhcp Enable/Disable DHCP Snooping

dot1x Enable/Disable dot1x

eigrp Enable/Disable Enhanced Interior Gateway Routing Protocol (EIGRP)

fcoe Enable/Disable FCoE/FC feature

fcoe-npv Enable/Disable FCoE NPV feature

fex Enable/Disable FEX

flexlink Enable/Disable Flexlink

hsrp Enable/Disable Hot Standby Router Protocol (HSRP)

http-server Enable/Disable http-server

interface-vlan Enable/Disable interface vlan

lacp Enable/Disable LACP

msdp Enable/Disable Multicast Source Discovery Protocol (MSDP)

ntp Enable/Disable NTP

ospf Enable/Disable Open Shortest Path First Protocol (OSPF)

ospfv3 Enable/Disable Open Shortest Path First Version 3 Protocol (OSPFv3)

pim Enable/Disable Protocol Independent Multicast (PIM)

port-security Enable/Disable port-security

private-vlan Enable/Disable private-vlan

privilege Enable/Disable IOS type privilege level support

ptp Enable/Disable PTP

rip Enable/Disable Routing Information Protocol (RIP)

ssh Enable/Disable ssh

tacacs+ Enable/Disable tacacs+

telnet Enable/Disable telnet

udld Enable/Disable UDLD

vpc Enable/Disable VPC (Virtual Port Channel)

vrrp Enable/Disable Virtual Router Redundancy Protocol (VRRP)

vtp Enable/Disable Vlan Trunking Protocol (VTP)

Reza Sharifi · ‎09-28-2012

5Ks do not support GLBP, only 7Ks do

HTH

mcg-tulsa · ‎09-28-2012

this is a serious problem.

mcg-tulsa · ‎09-28-2012

the documentation I am looking at from cisco.com shows 5500 having hsrp/glbp/vrrp support

Oleksandr Nesterov · ‎11-14-2012

Hello

GLBP is not currently supported on nexus 5000 platform

But currently there is a plan to support it in one of the future releases next year.

HTH,

Alex

derrick_ward · ‎03-06-2013

Does anybody know if GLBP is now supported on the NEXUS5548UP.

If so, which release would be required to run GLBP.

Derrick

InayathUlla Sharieff · ‎03-06-2013

Hi Derrick,

GLBP is still not supported on Nexus 5500.

Nexus 5000 currently supports two First-Hop Redundancy Protocols - HSRP and VRRP. GLBP
support is not implemented on 5000 yet and any current releases.

Regards

Inayath

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noc-cville · ‎07-03-2013

So this original post was written two years ago. I'm wondering if GLBP has yet been implemented on the Nexus 5K's as I two have a need for it. If not, any target date for it? THis is becoming a problem.

InayathUlla Sharieff · ‎07-03-2013

Mark,

GLBP is not supported on N5K (but supported on N7K).
Currently, GLBP is not in N5K roadmap.
If you are using vPC, then both active and standby HSRP routers are forwarding packets so traffic is load balanced by L2 vPC port-channel hash.
http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/operations/n5k_L3_w_vpc_5500platform.html#wp998303
vPC and First Hop Redundancy Protocol

When you use a Cisco Nexus 5548 switch or Cisco Nexus 5596UP switch as a default gateway for hosts, you can deploy the First Hop Redundancy Protocol (FHRP) to provide default gateway redundancy. Beginning with Cisco NX-OS Release 5.0(3)N1(1b), an active FHRP peer and a standby peer can perform Layer 3 forwarding when you enable vPC. This optimization improves bandwidth, avoids sending the Layer 3 traffic over the vPC peer link, and requires no configuration or protocol change. Only the FHRP active peer answers ARP requests. Because both active and standby FHRP peers can forward Layer 3 traffic, you do not need to configure an aggressive timer for FHRP to provide faster failover and convergence time if an active FHRP peer fails.

Figure 3-1<http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/operations/n5k_L3_w_vpc_5500platform.html#wp998349> shows that the Layer 3 traffic that originated from the host and is destined to a host several hops away can be routed by both the Host Standby Router Protocol (HSRP) active and the HSRP standby switch.

HTH

Regards

Inayath

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