Filter
Top Products
CHAPTER
5-1
Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide R8.5
78-18133-01
5
Configuring POS on the ML-Series Card
This chapter describes advanced packet-over-SONET (POS) interface configuration for the ML-Series
card. Basic POS interface configuration is included in Chapter 4, “Configuring Interfaces on the
ML-Series Card.” For more information about the Cisco IOS commands used in this chapter, refer to the
Cisco IOS Command Reference publication.
This chapter contains the following major sections:
• Understanding POS on the ML-Series Card, page 5-1
• Configuring the POS Interface, page 5-3
• Monitoring and Verifying POS, page 5-8
Understanding POS on the ML-Series Card
Ethernet frames and IP data packets need to be framed and encapsulated into SONET frames for
transport across the SONET network. This framing and encapsulation process is known as POS and is
carried out by the ML-Series card.
The ML-Series card treats all the standard Ethernet ports on the front of the card and the two POS ports
as switch ports. Under Cisco IOS, the POS port is an interface similar to the other Ethernet interfaces on
the ML-Series card. Many standard Cisco IOS features, such as IEEE 802.1 Q VLAN configuration, are
configured on the POS interface in the same manner as on a standard Ethernet interface. Other features
and configurations are done strictly on the POS interface. The configuration of features limited to POS
ports is shown in this chapter.
Available Circuit Sizes and Combinations
Each POS port terminates an independent contiguous SONET concatenation (CCAT) or virtual SONET
concatenation (VCAT). The SONET circuit is created for these ports through Cisco Transport Controller
(CTC) or Transaction Language One (TL1) in the same manner as a SONET circuit is created for a
non-Ethernet line card. Table 5-1shows the circuit sizes available for the ML-Series card on the
ONS 15310-CL and ONS 15310-MA, and the circuit sizes required for Ethernet wire speeds.