2 Vendors Offering Carrier Ethernet Bridged Solutions
Product Component Price ($)
Terabit class provider bridge or backbone bridge Base 130,000
10 Gbit/s LH port 11,400
1 Gbit/s LH port 1,900
100 Gbit class provider bridge Base 51,000
1 Gbit/s LH port 1,200
10 Gbit class provider bridge Base,
Four 1 Gbit/s LH ports
24 10/100/1000 SH ports
24,000
TABLE 13.1 Provider Bridge Pricing
420 Chapter 13
References
The best and most current description of the Rapid Spanning Tree Protocol is currently
found in IEEE Std. 802.1Q-2005.
1. All IEEE 802 standards can be obtained from the Get 802 website at http://standards
.ieee.org/getieee802/. Standards more than six months old are free. Those less
than six months old can be obtained for a fee.
2. See the IEEE 802.1 website at www.ieee802.org/1 for additional information about
IEEE 802.1 standards.
3. All IETF standards and requests for comments can be obtained from the Internet
Engineering Task Force at www.ietf.org.
421
Chapter 14
MPLS
by Giles Heron and Luca Martini
Multiprotocol Label Switching, or MPLS, was developed in the late 1990s. It is a packetswitching
technology that has both connectionless and connection-orientated characteristics
and that sits somewhere between the second and third layers of the OSI model
(one of the reasons it is sometimes described as being ???Layer 2.
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