22.05.2017 Views

nx.os.and.cisco.nexus.switching.2nd.edition.1587143046

Nexus Switching 2nd Edition

Nexus Switching 2nd Edition

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Active router is local<br />

St<strong>and</strong>by router is 10.10.100.3<br />

Authentication MD5, key-chain <strong>nexus</strong><br />

Virtual mac address is 0000.0c07.ac64 (Default MAC)<br />

2 state changes, last state change 00:40:20<br />

IP redundancy name is hsrp-Vlan100-100 (default)<br />

HSRP Support for IPv6<br />

NX-OS supports both HSRP version 1 (HSRPv1) <strong>and</strong> HSRP version 2 (HSRPv2). HSRPv2<br />

brings certain enhancements to HSRPv1, including exp<strong>and</strong>ed group number support, IPv6<br />

support, <strong>and</strong> improved management <strong>and</strong> troubleshooting. At the time of this writing,<br />

HSRPv2 is the only FHRP available for NX-OS that provides support for IPv6. The IPv6<br />

neighbor discovery (ND) process relies on periodic multicasting of available IPv6 routers<br />

via router advertisement (RA). A failover could take as long as 30 seconds. HSRPv2<br />

provides a much faster, millisecond failover alternative to the traditional IPv6 ND process.<br />

Example 3-110 shows the process of configuring basic HSRPv2 for IPv6.<br />

Example 3-110. Configuring HSRPv2 for IPv6<br />

Click here to view code image<br />

Congo# config t<br />

Enter configuration comm<strong>and</strong>s, one per line. End with<br />

CNTL/Z.<br />

Congo(config-if)# int vlan100<br />

Congo(config-if)# ipv6 address 6000:ab8::3/64<br />

Congo(config-if)# hsrp version 2<br />

Congo(config-if)# hsrp 100 ipv6<br />

Congo(config-if-hsrp)# ip 6000:ab8::1<br />

Congo(config-if-hsrp)# ip autoconfig<br />

Congo(config-if-hsrp)# no shut<br />

Congo(config)# sh hsrp group 101 ipv6<br />

Vlan101 - Group 101 (HSRP-V2) (IPv6)<br />

Local state is Active, priority 100 (Cfged 100)<br />

Forwarding threshold(for vPC), lower: 1 upper: 100<br />

Hellotime 3 sec, holdtime 10 sec<br />

Next hello sent in 2.629000 sec(s)<br />

Virtual IP address is fe80::5:73ff:fea0:65 (Auto)<br />

Active router is local<br />

St<strong>and</strong>by router is fe80::21b:54ff:fec2:ca41 , priority<br />

100 expires in 5.865000<br />

sec(s)<br />

Authentication text "<strong>cisco</strong>"<br />

Virtual mac address is 0005.73a0.0065 (Default MAC)

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!