chg-l2t

Use this command to change the values of the SS7 MTP level 2 timers. The timers are organized in 40 timer sets of which sets 1-35 have 9 timer values and sets 36-40 have 10 timer values. The timer sets are grouped and system default values are initialized by specification (ANSI, ITU, High Speed for China, High Speed for Q.703 Annex A, JT Q703, and High Speed for Unchannelized T1). Each timer set is administered individually by this command. The ent-slk command is used to assign an SS7 signaling link to any of the timer sets. Each assigned link is associated with a timer set.

Parameters

l2tset (mandatory)

Level 2 timer set. This parameter specifies the Level 2 timer set identifier or timer set number. Up to 40 different timer sets can be defined. A signaling link can be assigned to any of the timer sets.

Range:

1 - 40

1–10: ANSI links
11–20: low-speed ITU links
21-25: China high speed links
26-30: Q.703 Annex A high speed links
31-35: Unchannelized T1 high speed links
36-40: Japan ITU low speed links

nodata (optional)

This parameter specifies a value for the NODATA timer.

Note:

The NODATA timer measures the amount of time, in milliseconds, that must pass with no transmissions on a link before the EAGLE interprets the condition as a link failure or terminal equipment failure and initiates changeover procedures.

The NODATA timer is not applicable for HSLs. It is valid for low speed links only.

The NODATA timer is configurable only for low speed SS7 links running BASIC Error Correction Method (ECM).

The NODATA timer is not configurable for low speed SS7 links running PCR ECM. The NODATA timer value is calculated as T2 (L2 timer 2 value)/3 for low speed SS7 links running PCR ECM.

Range:: 100 - 500
Default:: No change to the current value
System Default:: 100

t1 (optional)

Timer 1—Aligned/ready

Range:

5000 - 350000 (milliseconds)

ANSI timer sets 1–10—5000–20000

ITU timer sets 11–20—40000–50000

China timer sets 21–25—25000–350000

Q.703 Annex A timer sets 26–30—25000–350000

Unchannelized T1 timer sets 31–35—16000–151000

Japan timer sets 36--40--- 15000

Default:

No change to the current value

System Default:

ANSI timer sets 1–10—13000

ITU timer sets 11–20—40000

China timer sets 21–25—150000

Q.703 Annex A timer sets 26–30—300000

Unchannelized T1 timer sets 31–35—151000

Japan timer sets 36--40--- 15000

t2 (optional)

Timer 2—Not aligned

Range:

5000 - 480000 (milliseconds)

ANSI timer sets 1–10—5000–30000

ITU timer sets 11–20—5000–150000

China timer sets 21–25—5000–150000

Q.703 Annex A timer sets 26–30—5000–150000

Unchannelized T1 timer sets 31–35—5000–14000

Japan timer sets 36--40----5000--480000

Default:

No change to the current value

System Default:

ANSI timer sets 1–10—11500

ITU timer sets 11–20—30000

China timer sets 21–25—130000

Q.703 Annex A timer sets 26–30—130000

Unchannelized T1 timer sets 31–35—14000

Japan timer sets 36--40--5000

t3 (optional)

Timer 3—Aligned

Range:

1000 - 20000 (milliseconds)

ANSI timer sets 1–10—5000–20000

ITU timer sets 11–20—1000–2000

Q.703 Annex A timer sets 26–30—1000–2000

China timer sets 21–25—1000–2000

Unchannelized T1 timer sets 31–35—5000–14000

Japan timer sets 36--40---3000

Default:

No change to the current value

System Default:

ANSI timer sets 1–10—11500

ITU timer sets 11–20—2000

China timer sets 21–25—1000

Q.703 Annex A timer sets 26–30—1000

Unchannelized T1 timer sets 31–35—14000

Japan ITU low speed links 36--40---3000

t4epp (optional)

Timer 4—Proving period Emergency

Range:

200 - 10000 (milliseconds)

ANSI timer sets 1–10—200–1000

ITU timer sets 11–20— 400–600

China timer sets 21–25—400–600

Q.703 Annex A timer sets 26–30—400–600

Unchannelized T1 timer sets 31–35—3000–10000

Japan timer sets 36--40--3000

Default:

No change to the current value

System Default:

ANSI timer sets 1–10—600

ITU timer sets 11–20—500

China timer sets 21–25—500

Q.703 Annex A timer sets 26–30—500

Unchannelized T1 timer sets 31–35—3000

Japan timer sets 36--40--3000

t4npp (optional)

Timer 4— Proving period normal

Range:

500 - 70000 (milliseconds)

ANSI timer sets 1–10—500–5000

ITU timer sets 11–20—7500–9500

China timer sets 21–25—3000–70000

Q.703 Annex A timer sets 26–30—3000–70000

Unchannelized T1 timer sets 31–35—3000–30000

Japan timer sets 36--40-- Not applicable

Default:

No change to the current value

System Default:

ANSI timer sets 1–10—2300

ITU timer sets 11–20—8200

China timer sets 21–25—30000

Q.703 Annex A timer sets 26–30—30000

Unchannelized T1 timer sets 31–35—30000

t5 (optional)

Timer 5—Sending SIB

Range:

40 - 500 (milliseconds)

ANSI timer sets 1–10—40–500

ITU timer sets 11–20—80–120

China timer sets 21–25—80–120

Q.703 Annex A timer sets 26–30—80–120

Unchannelized T1 timer sets 31–35—80–120

Japan timer sets 36--40--200

Default:

No change to the current value

System Default:

ANSI timer sets 1–10—100

ITU timer sets 11–20—100

China timer sets 21–25—100

Q.703 Annex A timer sets 26–30—100

Unchannelized T1 timer sets 31–35—80

Japan timer sets 36--40--200

t6 (optional)

Timer 6—Remote congestion

Range:

1000 - 10000 (milliseconds)

ANSI timer sets 1–10—1000 - 10000

ITU timer sets 11–20—3000 - 6000

China timer sets 21–24—3000 - 6000

Q.703 timer sets 26–30—3000 - 6000

Unchannelized T1 sets 31–35—3000 - 6000

Japan timer sets 36--40--5000

Default:

No change to the current value

System Default:

ANSI timer sets 1–10—4000

ITU timer sets 11–20—4000

China timer sets 21–25—5000

Q.703 Annex A timer sets 26–30—5000

Unchannelized T1 timer sets 31–35—5000

Japan timer sets 36--40--5000

t7 (optional)

Timer 7—Excessive delay of acknowledgment

Range:

200 - 3000 (milliseconds)

For ANSI timer sets 1–10—200–3000

ITU timer sets 11–20—500–2000

China timer sets 21–25—500–2000

Q.703 Annex A timer sets 26–30—500–2000

Unchannelized T1 timer sets 31–35—500–2000

Japan ITU low speed links 36--40---2000--3000

Default:

No change to the current value

System Default:

ANSI timer sets 1–10—1500

For ITU timer sets 11–20—1500

For China timer sets 21–25—800

For Q.703 Annex A timer sets 26–30—800

For Unchannelized T1 timer sets 31–35—500

Japan ITU low speed links 36--40--2000

Example

chg-l2t:l2tset=1:t1=5400

chg-l2t:l2tset=21:t4epp=600:t5=90:t6=3500:t7=1900

chg-l2t:l2tset=1:nodata=200

chg-l2t:l2tset=36:t2=6000

Dependencies

At least one optional parameter must be specified.

Failed reading level 2 timer set table.

The value specified for the timer must be within the range for that domain.

The value specified for the timer must be in the allowed range.

For l2tset greater than 35, timers t1, t3, t4epp, t5, and t6 are not allowed to change.

Notes

ANSI timer defaults are within the Telcordia recommended ranges.

ITU timer defaults are within ITU Q.703 white book recommended ranges.

J1 timer defaults are within JT Q.703 white book recommended ranges.

If the value specified for the nodata parameter is greater than 200 milliseconds, then the following message appears:

Caution:

WARNING: If NODATA timer value is greater than 200ms, links could go into congestion before link failure is declared

Output


		  chg-l2t:l2tset=21:t4epp=600:t5=90:t6=3500:t7=1900


    rlghncxa03w 05-02-07 11:11:28 EST  EAGLE5 34.0.0
    CHG-L2T: MASP A - COMPLTD 
;

 chg-l2t:l2tset=1:nodata=200


    tekelecstp 08-05-02 16:36:09 EST  EAGLE 39.0.0
    CHG-L2T: MASP A - COMPLTD

4.88 chg-l2t