02.10.2013 Views

FTOS Configuration Guide for the C-Series - Force10 Networks

FTOS Configuration Guide for the C-Series - Force10 Networks

FTOS Configuration Guide for the C-Series - Force10 Networks

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.

Figure 114 Server Cluster: Failover and Balancing Preserved with <strong>the</strong> vlan-flooding Command<br />

Microsoft Server Cluster:<br />

IP Cluster<br />

MAC Cluster<br />

Server1:<br />

MACS1<br />

IP S1<br />

Server2:<br />

IP<br />

S2<br />

MAC<br />

S2<br />

IP<br />

Server3: S3<br />

MAC<br />

S3<br />

IP<br />

Server3: S4<br />

MAC<br />

S4<br />

vlan-flooding configured<br />

Enabling and Disabling VLAN Flooding<br />

• ARP entries already resolved through <strong>the</strong> VLAN are deleted when <strong>the</strong> feature is enabled. This ensures<br />

that ARP entries across <strong>the</strong> VLAN are consistent.<br />

• All ARP entries learned after <strong>the</strong> feature is enabled are deleted when <strong>the</strong> feature is disabled, and RP2<br />

triggers ARP resolution. The feature is disabled with <strong>the</strong> command no vlan-flooding.<br />

• When a port is added to <strong>the</strong> VLAN, <strong>the</strong> port automatically receives traffic if <strong>the</strong> feature is enabled. Old<br />

ARP entries are not deleted or updated.<br />

• When a member port is deleted, its ARP entries are also deleted from <strong>the</strong> CAM.<br />

• Port channels in <strong>the</strong> VLAN also receive traffic.<br />

Source MAC: MAC<br />

S1<br />

Destination MAC: MAC<br />

Client<br />

Type: 0x0806<br />

• There is no impact on <strong>the</strong> configuration from saving <strong>the</strong> configuration.<br />

Source IP: IP<br />

S1<br />

Source MAC: MAC<br />

Cluster<br />

E<strong>the</strong>rnet Frame Header ARP Reply<br />

• The feature is not reflected in <strong>the</strong> output of <strong>the</strong> show arp command but is reflected in <strong>the</strong> output of <strong>the</strong><br />

command show ipf fib.<br />

The ARP entries exist in <strong>the</strong> secondary RPM CAM, so failover has no effect on <strong>the</strong> feature.<br />

<strong>FTOS</strong> <strong>Configuration</strong> <strong>Guide</strong>, version 7.7.1.0 205<br />

VLAN 1<br />

Data<br />

Pad CRC<br />

Client<br />

fnC0029mp

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

Saved successfully!

Ooh no, something went wrong!