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> Also do you that they would use DWDM for their management network? Yes, in the form of the Optical Supervisory Channel (OSC), which is built into DWDM gear a
by jauer 8y ago
> Also do you that they would use DWDM for their management network?
Yes, in the form of the Optical Supervisory Channel (OSC), which is built into DWDM gear and generally implemented as Ethernet over SONET.
The OSC can also carry management traffic for other devices (aka datawire).
It's Ethernet, so it has broadcasts...
- bogomipz 8y agoEven if its OCS we're talking about the supervisory channel is truly out of band in that its generally on a proprietary wavelength isolated from your other channels carrying customer traffic. In this sense its no different than how a copper ethernet management VLAN should not be able to take down your entire production network.
- jauer 8y ago"should not be able to" being the operative phrase :) Optical control plane generally hasn't benefited from the hardening that's happened in the IP world. Things like CoPP haven't become common practice yet.
- bogomipz 8y ago>"Optical control plane generally hasn't benefited from the hardening that's happened in the IP world" OK, but I imagine we can probably both agree that proper network design is orthogonal to the pace of development in optical transmission gear ;)