Cisco Cisco ONS 15454 SONET Multiservice Provisioning Platform (MSPP) Guía De Diseño

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The ML-Series cards integrate high-performance Ethernet transport, switching, and routing into a 
single card.  Think of an ML-Series card as a Cisco Catalyst switch on a blade.  There are two 
ML-Series cards: 
 

    ML100T-12 (Fast Ethernet) 

    ML1000-2 (Gigabit Ethernet) 

 
The ML100T-12 features 12 RJ-45 interfaces and the ML1000-2 features two Small Form Factor 
Pluggable (SFP) slots supporting short wavelength (SX) and long wavelength (LX) optical 
modules.  The ML100T-12 and the ML1000-2 use the same hardware and software base and 
offer the same feature sets. 
 
An ML-Series card can be installed in any of the multi-service I/O slots (1-6 and 12-17) when 
interoperated with the TCC+ or TCC2 and XC-10G cross-connect.  When interoperated with an 
TCC+ or TCC2 and XC or XC-VT, the ML-Series cards can only be installed in the four high-
speed I/O slots (5, 6, 12, and 13).  Once installed, an ML-Series card interoperates with the 
cross-connect via two virtual ports.  Each virtual port can support circuits up to 24c. 
 
Each ML-Series card is an independent data switch that processes up to 5.7 Mp/s of Layer 2 and 
Layer 3 switching.  The card ships loaded with Cisco IOS Release 12.1(14)EB, which controls the 
data functions of the card.  You can access the Cisco IOS to provision the cards in three ways: 
 

1.  The console port on the faceplate of the card 
2.  The Ethernet ports on the ML-Series card assigned to a management VLAN 
3.  A Telnet session initiated through a terminal program on the PC or through CTC 

 
The Cisco IOS command-line interface (CLI) is the primary user interface for configuring the ML-
Series card.  Most provisioning for the card, such as Ethernet port, bridging and VLAN, can only 
be done via the Cisco IOS CLI.  CTC is used for ML-Series status information, SONET alarm 
management, Cisco IOS Telnet session initialization, Cisco IOS configuration file management, 
and SONET (STS) cross-connect provisioning.  SONET cross-connects can only be provisioned 
through CTC or TL1. 
 
The Cisco IOS software image used by the ML-Series card is permanently stored in the flash 
memory of the TCC+/TCC2 card, not in the Ethernet cards.  During a hard reset, when an ML-
Series card is physically removed and reinserted, the Cisco IOS software image is downloaded 
from the flash memory of the TCC+/TCC2 to the memory cache of the ML-Series card.  The 
cached image is then decompressed and initialized for use by the ML-Series card. 
 
During a soft reset, when the ML-Series card is reset through CTC or Cisco IOS CLI commands, 
the ML-Series card checks its cache for an IOS image.  If a valid and current IOS image exists, 
the ML-Series card decompresses and initializes the image.  If the image does not exist, the ML-
Series requests a new copy of the IOS image from the TCC+/TCC2.  Caching the IOS image 
provides a significant time savings when a warm reset is performed. 
 

 
The features of the ML-Series cards are listed below. 
 
Layer 1 Features: 

    10/100BASE-TX half-duplex and full-duplex data transmission 

    1000BASE-SX, 1000BASE-LX full-duplex data transmission 

    Two SONET virtual ports with maximum bandwidth of STS-48c per card