Cisco Systems IGX 8400 manual Maximum Number of UXM-Es, Cabled UXM-E Redundancy

Page 9

 

 

 

 

Universal Switching Module Enhanced

 

Table 4-5

UXM-E Status LEDs

 

 

 

 

 

 

 

 

 

Fail

Active

Standby

Status of Card

 

 

 

 

 

 

 

On

Off

Off

Failed

 

 

 

 

 

 

 

Blinking

Blinking

Off

Back Card Mismatch (hot standby)

 

 

 

 

 

 

 

Blinking

On

Off

Back Card Mismatch (active)—can be missing back card

 

 

 

 

 

 

 

Blinking

Off

Blinking

Back Card Mismatch (self-test)

 

 

 

 

 

 

 

Blinking

Off

On

Back Card Mismatch (standby)

 

 

 

 

 

 

 

Off

Blinking

Off

Hot Standby

 

 

 

 

 

 

 

Off

On

Off

Active

 

 

 

 

 

 

 

Off

Off

Blinking

Self-test

 

 

 

 

 

 

 

Off

Off

On

Standby

 

 

 

 

 

 

 

On

On

On

Down

 

 

 

 

 

 

Maximum Number of UXM-Es

Switch software limits the number of logical trunks and ports on an IGX switch. The maximum number of UNI or NNI ports in an IGX switch is 64. The maximum number of logical trunks is 32. To determine the number of each logical type in the switch, add the number of ports on multiport cards and single-port cards. These sums cannot exceed 64 ports and 32 trunks. For example, using exclusively 2-port OC3 trunks, you could install:

2 trunks per card x 16 OC3 UXM-Es = 32 trunks

Switch software monitors the number of logical ports and trunks, not the number of UXM-Es. Therefore, the software keeps you from activating an excessive number of lines or trunks on the node rather than flagging the presence of too many cards.

Y-Cabled UXM-E Redundancy

The UXM-E features hot standby as a part of its Y-cable redundancy capability. With hot standby, the redundant card receives the configuration information as soon as you finish specifying redundancy. The standby card also receives updates to its configuration as the active card configuration changes. Hot standby lets the backup card go into operation as soon as necessary rather than waiting for the NPM to download the configuration.

Y-cable redundancy requires that both cards are active and available before you set up redundancy. Use Cisco WAN Manager or the CLI commands uptrk, addtrk, then addyred. (See also descriptions of addyred, delyred, dspyred, and ptyred in the Cisco WAN Switching Command Reference publication.)

Switchover to a Redundant UXM-E

If the card fails, a switchover occurs to a Y-cabled, redundant UXM-E card set if available. If the switchover occurs, the primary UXM-E acquires failed status, and the Fail LED turns on.

Trunk Cards 4-9

Image 9
Contents Trunk Cards Trunk Front Cards Card Acronym Card Name Trunk Interface CardsTrunk Card Maintenance Trunk Operating ModesLoopback Test Universal Switching Module Enhanced Introduction to the UXM-E Trunk ModeExample Networks with UXM-Es Determining the UXM-E’s Mode of OperationUXM-Es in a Network with Heterogeneous Traffic UXM-E Trunk FeaturesUXM-E Interfaces Back Cards for the UXM-ECard Name Card Description UXM-E Front Card Maximum Number of UXM-Es Switchover to a Redundant UXM-ECabled UXM-E Redundancy UXM-E Status LEDs Fail Active Standby Status of CardCellbus Bandwidth Usage Card MismatchUXM-E as a Clock Source OC3 Planning for Cellbus Bandwidth AllocationATM Across a Public ATM Network Calculating Cellbus Bandwidth ChangesRouting over Cell Trunks Only UXM-E in Trunk ModeTypes of Supported Traffic Traffic from FastPacket-Based Cards Traffic TypeInverse Multiplexing over ATM on IGX Trunks Types of Connections on a UXM-E TrunkAdding an IGX Feeder Line Redundancy Adding and Removing IMA Group LinksTwo-Segment Connections IMA ProtocolRouting Feeder Connection Cell Endpoint a Endpoint B Type Gateway Type Routing Load TypeFeeder Connection Cell Endpoint a Endpoint B Type Three-Segment ConnectionsRT-VBR Gwtypenone ABR.FST GwtypenoneActivation and Configuration of a UXM-E in Trunk Mode UXM-E AtfrOC3 STM1 SMF 20Cisco IGX 8400 Series Reference SCR and PCR Policing at Less than 50 CPS on UXM-E Alarms for Physical Lines and Logical TrunksBXM IGX-UXM-E10 PCR Policing Application Example Trunk Statistics for TroubleshootingUXM-E Interface Cards Summary StatisticsConnectors and LEDs for SMF and MMF Back Cards Connector/Indicator FunctionOC-3/STM1 Back Cards 11 BC-UAI-4-155-SMF Faceplate 12 BC-UAI-2-155-SMF Faceplate T3 Back CardsConnectors and LEDs for BC-UAI-6-T3 and BC-UAI-3-T3 Connectors/Indicator FunctionBC-UAI-6-T3 Faceplate 14 BC-UAI-3-T3 Faceplate E3 Back CardsBC-UAI-6-E3 Faceplate Connectors and LEDs for BC-UAI-6-E3 and BC-UAI-3-E316 BC-UAI-3-E3 Faceplate T1 Back CardsBC-UAI-8-T1-DB-15 Faceplate 18 BC-UAI-4-T1-DB-15 Faceplate E1 Back CardsBC-UAI-8-E1 DB-15 Faceplate Port 21 BC-UAI-4-E1 DB-15 Faceplate 22 BC-UAI-4-E1 BNC Faceplate Cable Redundancy for the NTM NTM StatusNetwork Trunk Module BC-T1 Faceplate Description T1 Interface Card BC-T1BC-T1 Connections and Status LEDs 23 BC-T1 FaceplateE1 Interface Back Card BC-E1 RX-TX BC-E1 Connections and Status LEDsSubrate Interface Card BC-SR BC-SR Connections and Status LEDs Connection/Indicator FunctionY1 Interface Back Card BC-Y1 BC-Y1 Connections and Status LEDs RX MONTX MON 46Cisco IGX 8400 Series Reference