out-of-band network experiences
Hello All, I would appreciate if you could share your experiences of settting up out-of-band management networks especially large # 50 - 100+ sites. Appreciate your experiences on the follwing and any other: - out-of-band network circuit going thru the same transport equipment as the managed network - topology (i.e Frame,ATM,leased circuits etc) - redundancy in out-of-band network for criticial monitoring ( Dual hub-spoke for redundancy etc, dial-on-demand with POTS, ISDN, wireless etc) - hierarchy with regional aggregation for out-of-band networks to reduce costs - SLAs for out-of-band monitoring -static routes versus dynamic protcols (RIP,OSPF, EIGRP) Michael Chang __________________________________________________ FREE voicemail, email, and fax...all in one place. Sign Up Now! http://www.onebox.com
On Mon, 5 Nov 2001, Michael Chang wrote:
I would appreciate if you could share your experiences of settting up out-of-band management networks especially large # 50 - 100+ sites. Appreciate your experiences on the follwing and any other:
Most providers rely on dialup async terminal/console port access as their out-of-band management network. It is generally a terminal server connected to the equipment console ports, with a dialup modem for external access. A few (very few) providers have a dedicated out-of-band management network. Generally a frame-relay circuit to a management hub/router connected to the async terminal server and low-speed (10 meg) ethernet port on some routers. One problem with high-end routers, it is either expensive (lost opportunity cost) or impossible to connect low-speed circuits to high-end routers. Non-facility based providers often purchase their out-of-band circuits from a different provider than their primary circuits. AT&T is a popular supplier for out-of-band management networks. AT&T may not be price/competitive for high-bandwidth circuits, but for 64k/128k frame-relay management links, it may make sense. Carrier/facility based providers tend to use their own facilities. Yep, facility based providers have cut their own facilities in the past, including one provider which took their own NOC off-line for most of a day.
On Mon, Nov 05, 2001 at 04:47:31PM -0500, Sean Donelan reportedly typed:
A few (very few) providers have a dedicated out-of-band management network. Generally a frame-relay circuit to a management hub/router connected to the async terminal server and low-speed (10 meg) ethernet port on some routers. One problem with high-end routers, it is either expensive (lost opportunity cost) or impossible to connect low-speed circuits to high-end routers.
The Cisco 3640 makes for a nice console server to hook up to your out of band network. It supports a 32port Async module as well as 10/100 ethernet and T1 WIC (supports Frame Relay, of course). It also supports E1 for your non-domestic sites.
Carrier/facility based providers tend to use their own facilities. Yep, facility based providers have cut their own facilities in the past, including one provider which took their own NOC off-line for most of a day.
It's always good to have a backup, even for your management netowrk. When the Frame Relay network fails, there's always the OOB modem/POTS. Dave -- Dave Siegel HOME 520-877-2593 dave at siegelie dot com WORK 520-877-2628 dsiegel at gblx dot net Director, IP Engineering, Global Crossing
participants (3)
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Dave Siegel -
Michael Chang -
Sean Donelan