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

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

not be prolonged because of the inability to access the device remotely. The management<br />

interfaces operate in active/st<strong>and</strong>by just as the supervisors do. Whichever supervisor is<br />

active is where connectivity for the mgmt0 interface is derived.<br />

Note<br />

The CMP is currently only available on the Nexus 7000 supervisor Module-1X<br />

(N7K-SUP1). Later revisions of the supervisor Module including supervisor Module-<br />

2 <strong>and</strong> supervisor Module-2E (N7K-SUP2 <strong>and</strong> N7K-SUP2E) do not include the CMP.<br />

Note<br />

Because of the active/st<strong>and</strong>by nature of the mgmt0 interface, it is recommended that<br />

the management interfaces of both supervisors are physically connected to an external<br />

switching infrastructure at all times.<br />

Example 6-4 shows how to verify supervisor redundancy.<br />

Example 6-4. Verifying Supervisor Redundancy<br />

Click here to view code image<br />

N7k-1# show system redundancy status<br />

Redundancy mode<br />

---------------<br />

administrative: HA<br />

operational: HA<br />

This supervisor (sup-1)<br />

-----------------------<br />

Redundancy state:<br />

Supervisor state:<br />

Internal state:<br />

Active<br />

Active<br />

Active with HA st<strong>and</strong>by<br />

Other supervisor (sup-2)<br />

------------------------<br />

Redundancy state: St<strong>and</strong>by<br />

Supervisor state: HA st<strong>and</strong>by<br />

Internal state: HA st<strong>and</strong>by<br />

Redundant Ethernet Out-of-B<strong>and</strong> (EOBC)<br />

Various forms of communication between line cards, fabric modules, <strong>and</strong> supervisors are<br />

required within a normal system operation. This communication occurs over an internal<br />

switching infrastructure called the Ethernet Out-of-B<strong>and</strong> Channel (EOBC). Each supervisor

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

Saved successfully!

Ooh no, something went wrong!