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<p>Hi All,</p>
<p>I'm pleased to say that the Cisco switch chassis/supervisor
upgrade on Friday was successful. We are now running a Cisco
Catalyst 4506-E with supervisor 6-E and the latest firmware in
place of the previous 4507R with supervisor IV. The new switch is
named Kerosene and increases throughput per line card from 6 Gb/s
to 24 Gb/s with the option of 48 Gb/s with the same chassis in the
future. It also adds 10G capability and the ability to run the
latest software version.<br>
</p>
<p>Kerosene is set up nearly identical to Bitumen save for a few
things:</p>
<ul>
<li>A different management IP that is in DNS</li>
<li>The 2xGbE LACP link from Bitumen to Walnut has been replaced
with 10G SR fibre</li>
<li>The connections to Bitumen's 2 24-port line cards have been
moved onto a 48-port line card</li>
<li>Updated rommon firmware and Cisco iOS</li>
</ul>
<p>The ports have been minimally rearranged to fit the new line
cards. Essentially, both switches physically consist of 4 rows of
24 ports, and the row/column position of each connection has been
maintained. This is also the tagging system that was used when
labelling the ends of the patch leads during the move. As the
48-port line card numbers ports in top/bottom pairs first (i.e.
port 2 is the first port on the bottom row, not the second port on
the top row), the interfaces in the switch configuration had to be
renumbered appropriately.</p>
<p>The configs of both Walnut and Kerosene were also altered to use
the same settings for the 10G link as were previously applied to
the copper pair. (Failing to remember to change Walnut as well was
the source of the initial failure for the network to come back
up.)</p>
<p>Just a final note on the physical removal/installation of the
switches: they are very heavy, definitely at least a two-person
job. For future reference, we found that moving the patch panel
underneath the switch out of the way allowed lifting it directly
up into position while mounting, which was much easier.</p>
<p>Thanks to [FVP] and [DAS] for their effort and help.</p>
<p>If anyone has further questions about the process, don't hesitate
to reply.<br>
</p>
<p>Cheers,</p>
<p>James Arcus [MPT]<br>
</p>
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