Terabit Ethernet eh? Please remind me again why we need QoS?
QoS?
By Anonymous on Fri, 11/20/2009 - 9:17pm
Tags:
Sponsored Links
- Take the Netezza TwinFin TestDrive!- Netezza
- Getting to One 10-minute Webcast, Cloud Computing: Beyond the Hype- Novell
- Watch a step-by-step demo of how Chinese hackers compromised brand name US high-tech companies like Google. - Zscaler
- Cisco Webcast: Leveraging 802.11n, Is your WLAN ready for Enterprise Video?- Cisco
- Turn your desk phone and mobile phone into one with Sprint Mobile Integration.- Sprint
- Discover the Four Trends Driving the Future of Data Centers - Emerson Network Power
- Visit Oberon for more information- Oberon Wireless
- Next-generation firewalls control applications and prevent threats.- Palo Alto Networks
- Troubleshoot in Minutes! Search & Report on all Network data - Free Download.- Splunk Inc.
- MoneyGram leverages Windows/Novell InteropAbility- Novell Microsoft
-
Network World, Inc
The Leader in Network Knowledge
For those remote sites with a T1 or those 10 Mb Metroethernet si
For those remote sites with a T1 or those 10 Mb Metroethernet sites for voice / video....
QOS
Not all the links will be Terabit, right? It's for them - they're likely to be able to fill their uplinks, or have some congestion / traffic ordering concerns, and all the traffic from the non-TBE sites isn't just uplink traffic - stuff is coming back to them. And if it's coming back from the main location that has TBE, then you'll have congestion issues on the return side of the flow...
Speed can mitigate QOS concerns in some regards and in some scenarios, but certainly not all of them. People often think speed is a cure-all, and it's not...
QOS
Faster optical links can easily lead to increased nodal delays. And as the number of nodes in a network multiply, so can the cumulative delays. If the bandwidth is there, it will get filled, most likely with irrelevant stuff, so with a bit of luck QoS will help move along the latency-critical information ahead of the dross. At least we hope!!
Post new comment