User manual ALCATEL-LUCENT SPEDDTOUCH 591S

[. . . ] Alcatel assumes no responsibility for the accuracy of the information presented, which is subject to change without notice. Alcatel, the Alcatel logo, MainStreet, and Newbridge are registered trademarks of Alcatel. All rights reserved. Disclaimers Alcatel products are intended for commercial uses. Without the appropriate network design engineering, they must not be sold, licensed or otherwise distributed for use in any hazardous environments requiring fail-safe performance, such as in the operation of nuclear facilities, aircraft navigation or communication systems, air traffic control, direct life-support machines, or weapons systems, in which the failure of products could lead directly to death, personal injury, or severe physical or environmental damage. [. . . ] As many as eight FRSC profiles can be configured. CONFIG OBJECT PORT <U> STREAM OPTIONS THRESHOLD TCA_PROFILE REAL_TIME LOW_DELAY COM_THRUPUT BEST_EFFORT CONGESTION ACT <value> SCT <value> MCT <value> ACT <value> SCT <value> MCT <value> ACT <value> SCT <value> MCT <value> ACT <value> SCT <value> MCT <value> PROFILE_NUM <profile_number> ENABLE SK002112 Real time, low delay, committed throughput, and best effort are frame relay queues that provide QoS differentiation between types of frame relay connections. Refer to Alcatel 7350 ASAM Technical Practices for further information. In FRSC profiles, ACT, SCT, and MCT are expressed in milliseconds because they are thresholds applied on the four frame relay queues, based on the amount of time data spends in the queues. Table 7-3 lists these values. 7-8 Speed Touch 591s Technical Practices 90-8785-01 February 2001 7 -- TCA profiles Table 7-3 Threshold values for frame relay queue congestion Parameter REAL_TIME Threshold ACT SCT MCT LOW_DELAY ACT SCT MCT COM_THRUPUT ACT SCT MCT BEST_EFFORT ACT SCT MCT Range (ms) 0 to 3600 0 to 3600 0 to 3600 0 to 3600 0 to 3600 0 to 3600 0 to 3600 0 to 3600 0 to 3600 0 to 3600 0 to 3600 0 to 3600 Default value 500 400 250 800 625 400 1250 1000 625 1250 1000 625 Note -- As many as eight FRSC profiles can be defined, but only one profile can be enabled on the user port at a time. Procedure 7-4 Configuring FRSC-type TCA profiles To configure the value for MCT as 25% in the low-delay queue for profile 1, and to enable the profile on the user port: 1 Enter: CONFIG -- OBJECT -- PORT -- <U> -- STREAM -- OPTIONS -- THRESHOLD -- LOW_DELAY -- MCT -- <25> 2 3 Press <Esc> to move up a level in the softkey tree. Select: TCA_PROFILE -- CONGESTION -- PROFILE_NUM At this stage the available profiles can be displayed by pressing <Esc> <1>. 4 Enter: <1> -- TCA_PROFILE -- CONGESTION -- ENABLE Speed Touch 591s Technical Practices February 2001 90-8785-01 7-9 7 -- TCA profiles Profile 1 is now enabled for monitoring congestion on the user port. Note -- When an alarm is generated, the type of congestion (FRSC or FRCC) and maximum time threshold that has been exceeded (SCT or MCT) are indicated, but no information is provided on which FRSC queue was congested. Procedure 7-5 Displaying FRSC-type TCA profiles 1 Enter: CONFIG -- SYSTEM -- TCA_PROFILE -- <FRSC> Figure 7-3 shows the list of FRSC-type TCA profiles that is displayed on the Speed Touch 591s NMTI. Figure 7-3 FRSC TCA profile screen Speed Touch 591s Generic Node name Maj:Alrm:5 Date Time TCA Profile Class : FR Stream Congestion Profile 1 2 3 4 5 6 7 8 Name FRSC_ONE FRSC_TWO CONFIG SYSTEM Enter Profile 16- TCA_PROFILE FRSC number 2378-CANCEL 49-QUIT 50- 2 To list the parameter thresholds for a profile, enter: <profile_number> where profile_number is the number of the profile The parameter threshold settings for the profile are displayed (see Figure 7-4). 7-10 Speed Touch 591s Technical Practices 90-8785-01 February 2001 7 -- TCA profiles Figure 7-4 FRSC TCA profile parameter thresholds screen Speed Touch 591s Generic Node name Maj:Alrm:5 Date Time Profile Class : FR Stream Congestion Profile Number : 1 Profile Name : FRSC_ONE Code SCT MCT Performance Parameter Severe Congestion Threshold Mild Congestion Threshold Threshold Values (1_HOUR) 30 40 CONFIG SYSTEM TCA_PROFILE FRSC 1 1-NAME 62-PERF_PARAMTRS 738-CANCEL 49-QUIT 50- Note -- The FRSC-type TCA profile screen (but not the parameter threshold screen) can also be viewed via the maintenance menu by selecting: MAINT -- SYSTEM -- TCA_PROFILE -- <FRSC> Refer to chapter 13 for information on maintenance operations. Speed Touch 591s Technical Practices February 2001 90-8785-01 7-11 7 -- TCA profiles 7-12 Speed Touch 591s Technical Practices 90-8785-01 February 2001 8 -- Configuring the V. 35/X. 21 CE user port 8. 1 8. 2 Configuring the user port name and options Configuring user port circuit parameters 8-5 8-2 Speed Touch 591s Technical Practices February 2001 90-8785-01 8-1 8 -- Configuring the V. 35/X. 21 CE user port 8. 1 Configuring the user port name and options The softkey structure for configuring the name and options for the Speed Touch 591s user port is shown below. CONFIG OBJECT PORT <U> NAME <name> OPTIONS CLOCK_RATE CTRL_LEADS IF_TYPE CLOCKING TX_INVERT INPUTS OUTPUTS SET_DEFAULT V. 35* V. 36/TIA-449 X. 21 ENABLE DISABLE* C DTR RTS DSR DCD/I CTS TM SK002898 Table 8-1 lists the user port parameters that can be configured on the Speed Touch 591s. 8-2 Speed Touch 591s Technical Practices 90-8785-01 February 2001 8 -- Configuring the V. 35/X. 21 CE user port Table 8-1 User port parameters Parameter Name Clock rate Interface type Clock inversion Options 15-character string n × 64 (n = 1 to 32) V. 35, V. 36/TIA/EIA-449, X. 21 Enable, Disable Default value -- 512 kb/s V. 35 Disable Control leads C (X. 21) DTR (V. 35/V. 36) RTS (V. 35/V. 36) DSR (V. 35/V. 36) DCD (V. 35/V. 36) I (X. 21) CTS (V. 35/V. 36) TM (V. 35) Active, Assume On, Assume Off Active, Assume On, Assume Off Active, Assume On, Assume Off Force On, Force Off Active, Force On, Force Off Active, Force On, Force Off Force On, Force Off, Ind_maint (1) Active Active Active Force On Active Active Ind_maint Note (1) When the test mode lead is set to Ind_maint, it is controlled by software-initiated maintenance. The lead is forced on when a maintenance action such as a loopback is applied to the Speed Touch 591s, and it is forced off when all maintenance actions are removed. Procedure 8-1 Naming the user port CONFIG -- OBJECT -- PORT -- <U> -- NAME -- <name> where name contains a maximum of 15 characters excluding space, tab, period, question mark, and percent sign Procedure 8-2 Configuring the interface type Caution -- Every time the interface type is changed, all configured connections are removed and the user port reverts to the DISABLED state. Refer to section 13. 3 for details on how to enable the user port. CONFIG -- OBJECT -- PORT -- <U> -- OPTIONS -- IF_TYPE -- V. 35* or TIA-449 or X. 21 Speed Touch 591s Technical Practices February 2001 90-8785-01 8-3 8 -- Configuring the V. 35/X. 21 CE user port Procedure 8-3 Configuring input control leads 1 Enter: CONFIG -- OBJECT -- PORT -- <U> -- OPTIONS -- CTRL_LEADS -- INPUTS 2 Select: a For X. 21: C b For V. 35 and V. 36/TIA-449: DTR or RTS 3 Select: ASSUME_ON or ASSUME_OFF or ACTIVE* Procedure 8-4 Configuring output control leads 1 Enter: CONFIG -- OBJECT -- PORT -- <U> -- OPTIONS -- CTRL_LEADS -- OUTPUTS 2 Select: DSR or DCD/I or CTS or TM 3 Select: a For DSR or TM: FORCE_ON* or FORCE_OFF or IND_MAINT* (TM output only) b For DCD/I or CTS: ACTIVE* or FORCE_ON or FORCE_OFF Procedure 8-5 Restoring default values for the control leads CONFIG -- OBJECT -- PORT -- <U> -- OPTIONS -- CTRL_LEADS -- SET_DEFAULT Table 8-1 lists the default values for the control leads. 8-4 Speed Touch 591s Technical Practices 90-8785-01 February 2001 8 -- Configuring the V. 35/X. 21 CE user port Procedure 8-6 Configuring inverted clocking CONFIG -- OBJECT -- PORT -- <U> -- OPTIONS -- CLOCKING -- TX_INVERT -- ENABLE or DISABLE* Procedure 8-7 Configuring the clock rate CONFIG -- OBJECT -- PORT -- <U> -- OPTIONS -- CLOCKING -- CLOCK_RATE -- n*64kb/s <value> where value is the value of n (1 to 32), used as a multiplying factor for 64 kb/s 8. 2 Configuring user port circuit parameters The softkey structure for configuring the circuit on the user port is shown below. CONFIG OBJECT PORT <U> CIRCUIT AAL_SERVICE PLAYOUT_BUFF <value> NUM_DATA_OCT PAD_OCTET_VAL <value> UDT SDT_w/BASIC ALL <value> SK002465 Caution -- When any of the circuit parameters are changed, all configured connections are removed, and the user port reverts to the disabled state. Refer to sections 9. 1 and 13. 3 for details on how to configure connections and enable the user port. Speed Touch 591s Technical Practices February 2001 90-8785-01 8-5 8 -- Configuring the V. 35/X. 21 CE user port Table 8-2 lists the circuit parameters that can be configured on the Speed Touch 591s user port. Table 8-2 Circuit parameters Parameter AAL service type Playout buffer size User data octets per cell Pad octet pattern Options UDT, SDT_w/BASIC 1 to 12 ms, in increments of 0. 5 ms 3 to 46, ALL 00 to FF Default value UDT 6 ms ALL FF Service types The V. 35/X. 21 circuit emulation version of the Speed Touch 591s supports two data transfer modes--unstructured data transfer mode and basic structured data transfer mode (AAL1). Procedure 8-8 Configuring the AAL service type CONFIG -- OBJECT -- PORT -- <U> -- CIRCUIT -- AAL_SERVICE -- UDT or SDT_BASIC Playout buffer size The playout buffer for data flowing from the network port to the user port can be configured to compensate for the effects of positive and negative cell delay variation. Cell delay variation is a measurement of the difference in cell propagation delay occurring on a connection. The playout buffer depth is set to absorb the negative CDV characteristics of the network (the increased time between the arrival of consecutive cells, or cell spacing) by ensuring that the buffer has sufficient data so that the data stream does not run dry between cell arrivals. Conversely, the playout buffer must also absorb the positive CDV characteristics of the Speed Touch 591s and network (cells being received with a very short delay between them, or cell clumping) by providing sufficient cell storage space in the buffer to avoid overflow under clumping conditions. Buffered data is sent on the V. 35 serial stream at a constant rate, which is independent of the rate at which the cells are received. The setting for CDVT determines how much CDV can be tolerated before the Speed Touch 591s is forced to insert erroneous (fixed-pattern) data. A high CDVT setting allows the AAL1 VC to tolerate a higher CDV without errors, but at the expense of a higher transfer delay through the Speed Touch 591s. The CDVT cannot be configured and is set by default to half the playout buffer size. 8-6 Speed Touch 591s Technical Practices 90-8785-01 February 2001 8 -- Configuring the V. 35/X. 21 CE user port Procedure 8-9 Configuring the playout buffer size CONFIG -- OBJECT -- PORT -- <U> -- CIRCUIT -- PLAYOUT_BUF -- <value> where value is a value between 1 and 12 ms, in increments of 0. 5 ms Partial cell filling Partial cell filling minimizes cell assembly delay by only partially filling the cells with user data and filling the remaining space with padding octets. This speeds up cell assembly because the Speed Touch 591s does not have to wait for an entire cell of data to be received before sending the cell. Partial cell filling is configured using two parameters--the number of data octets per cell (which determines how much a cell is filled before being sent) and the padding octet pattern (which determines the format of the padding octets that are used to fill the rest of the cell). If the first parameter is configured as ALL, no padding octets are inserted into the cells. Procedure 8-10 Configuring the number of user data octets per cell CONFIG -- OBJECT -- PORT -- <U> -- CIRCUIT -- NUM_DATA_OCT -- ALL or <value> where value is a value between 3 and 46 Procedure 8-11 Configuring the padding octet pattern CONFIG -- OBJECT -- PORT -- <U> -- CIRCUIT -- PAD_OCTET_VAL -- <value> where value is a value between 00 and FF Speed Touch 591s Technical Practices February 2001 90-8785-01 8-7 8 -- Configuring the V. 35/X. 21 CE user port 8-8 Speed Touch 591s Technical Practices 90-8785-01 February 2001 9 -- Configuring V. 35/X. 21 CE connections 9. 1 Configuring connection options 9-2 Speed Touch 591s Technical Practices February 2001 90-8785-01 9-1 9 -- Configuring V. 35/X. 21 CE connections 9. 1 Configuring connection options The softkey structure for configuring connection options on the Speed Touch 591s is shown below. CONFIG CONNECT <U> SHOW_GROUP DISCONNECT TO_ENDPOINT <endpoint> SK002468 Selecting the two connection endpoints Connections in the Speed Touch 591s are created between the user and the network ports and are thus internal to the Speed Touch 591s. A connection in the Speed Touch 591s is identified by its two endpoints--one at the user port, the other at the network port. Refer to Alcatel 7350 ASAM Technical Practices for further information on endpoint identifiers. Procedure 9-1 Selecting the two connection endpoints CONFIG -- CONNECT -- <U> -- TO_ENDPOINT -- <endpoint> where endpoint is in the format <N;0/vci> and vci is a VCI number in the range 0 to 255 Displaying connection information Connection information for the endpoints of the PVCs can be displayed on the Speed Touch 591s. For further details of the connection information available, refer to Alcatel 7350 ASAM Technical Practices. Procedure 9-2 Displaying connection information CONFIG -- CONNECT -- <U> -- SHOW_GROUP 9-2 Speed Touch 591s Technical Practices 90-8785-01 February 2001 9 -- Configuring V. 35/X. 21 CE connections Disconnecting an endpoint A connection can be disconnected by disconnecting either endpoint. Procedure 9-3 Disconnecting an endpoint CONFIG -- CONNECT -- <U> -- DISCONNECT Speed Touch 591s Technical Practices February 2001 90-8785-01 9-3 9 -- Configuring V. 35/X. 21 CE connections 9-4 Speed Touch 591s Technical Practices 90-8785-01 February 2001 10 -- Configuring the T1/E1 CE port 10. 1 10. 2 10. 3 10. 4 Configuring the T1/E1 port name and service options Configuring the T1 port physical options Configuring the E1 port physical options Configuring trunk conditioning parameters 10-5 10-10 10-11 10-2 Speed Touch 591s Technical Practices February 2001 90-8785-01 10-1 10 -- Configuring the T1/E1 CE port 10. 1 Configuring the T1/E1 port name and service options The softkey structure for configuring the name and AAL service options for the T1/E1 port is shown below. CONFIG OBJECT PORT <U> NAME <name> OPTIONS AAL_SERVICE UDT* UDT_PERFMON SDT_BASIC SDT_CAS OPTIONS PLAYOUT_BUFF <value> SK002859 Table 10-1 lists the T1/E1 port parameters that can be configured. Caution -- When the AAL service type is changed, all configured connections are removed. [. . . ] Similar to X. 25, CPSS is a packet-switched system used to transfer configuration and status information between nodes. CRC cyclic redundancy check A CRC is a process used to check the integrity of a block of data. GL-2 Speed Touch 591s Technical Practices 90-8785-01 February 2001 Glossary CTS DCD clear to send data carrier detect DCD is a V. 24 control signal from the DCE to the connected DTE, indicating that the DCE is receiving a carrier signal from another DCE at the other end of the circuit. DCE a) data circuit-terminating equipment b) data communications equipment DCE refers to the gender of the interface on a data device, such as a modem or transceiver. The pinout wiring is such that pin 2 receives data and pin 3 transmits data. The DCE must be connected to a DTE device. DE discard eligibility The DE is a bit in the header of each frame relay frame that, when set, indicates that the frame should be discarded when network congestion has increased past an acceptable level. The frame is discarded in preference to others that do not have the DE bit set. DLC data link connection A DLC represents a segment of a PVC. [. . . ]