Hello again!
Now is the/my time to play multi-vendor dot1q tagging. One vendor being
Cisco, of course. Other vendors will be represented by a nameless
nitial --- "F" at the high-end and "S" at the edge.
We've all heard about a/the management VLAN, and I've certainly struggled
with my little network over migration to that 192.168.x.x model of
management VLAN addressing. ("little": 20 sites/~200 nodes/site, gig-e
fiber) I've a couple of "Yea, but what about in the real world, there,
bub?" kind of questions.
With less than 250 switches, now, should the management VLAN *remain* a flat
network across the enterprise? Or, should each site, which are L3 segmented
by the core router, have it's own 192.168.x.y/24 IP segment?
This is a deceptively complex question, including things like DHCP servers,
router availability, security, (Should VLAN 1 be the management VLAN at
all?), bandwidth utilization (by user VLANs across the trunk, too.), vendor
compatibility (but, here, F and S are capable of changing mgmt. VLANs), and,
perhaps not entirely least (or last), ease of configuration and maintenance
upon the hapless network administrative staff.
I'd be interested to hear how "the ole pros" do it. And why.
Best, Uncle G.
''It is no use saying, 'We are doing our best.' You have got to
succeed in doing what is necessary.'' - Sir Winston Churchill
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