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Chapter 5
Ethernet Cards
The CE-MR-10 card provides ten IEEE 802.3-compliant 10/100/1000-Mbps Gigabit Ethernet ports at
the ingress. At the egress, the CE-MR-10 card provides an integrated Ethernet-over-SONET mapper with
ten virtual ports to transfer Ethernet packets over a SONET network.
The CE-MR-10 card uses pluggable SFPs to transport Ethernet traffic over a SONET network. SFP
modules are offered as separate orderable products for flexibility. For details, see the
Card GBICs and SFPs" section on page
The Ethernet frames are encapsulated using the ITU-T generic framing procedure (GFP) (with or
without CRC) or LEX, the Point-to-Point Protocol (PPP) with high-level data link control (HDLC).
The Ethernet ports automatically configure to operate at either half or full duplex and can determine
whether to enable or disable flow control. The Ethernet ports can also be oversubscribed using flow
control.
The CE-MR-10 card supports the link capacity adjustment scheme (LCAS), which allows hitless
dynamic adjustment of SONET link bandwidth. The CE-MR-10 card's LCAS is hardware-based, but the
CE-MR-10 also supports software LCAS (SW-LCAS). This makes it compatible with ML-Series cards,
which support only SW-LCAS, along with G-Series and CE-Series cards. The CE-MR-10 card also
supports the non link capacity adjustment scheme (non-LCAS). The CE-MR-10 card supports both
flexible and fixed VCAT groups (VCG).
The CE-MR-10 card does not support interoperation between the LCAS and non-LCAS circuits.
Note
The Ethernet frames can be mapped into:
T1X1 G.707-based high-order virtual concatenated (HO VCAT) payloads
•
–
–
•
T1X1 G.707-based low-order virtual concatenated (LO VCAT) payloads
–
•
Contiguously concatenated (CCAT) SONET payloads
–
–
To configure a CE-MR-10 card circuit, refer to the "Create Circuits and Tunnels" chapter in the
Cisco ONS 15454 Procedure Guide.
The CE-MR-10 card provides multiple management options through CTC, CTM, TL1, and SNMP.
Figure 5-12
78-18106-01
STS-3c-nv, where n is 1 to 7
STS-1-nv, where n is 1 to 21
VT1.5-nv, where n is 1 to 64
Standard CCAT sizes (STS-1, STS-3c, STS-12c, STS-24c, and STS-48c)
Non-standard CCAT sizes (STS-6c and STS-9c)
shows the CE-MR-10 card faceplate and block diagram.
5-33.
Cisco ONS 15454 Reference Manual, R8.5
5.13 CE-MR-10 Card
"5.14 Ethernet
5-31
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