---
oid: "1.3.6.1.4.1.562.2.4.1.127.5.10.1.2"
asn1-notation: "{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 562 magellan(2) passport(4) components(1) gsmCs(127) gsmCsV42(5) gsmCsV42ProvTable(10) gsmCsV42ProvEntry(1) gsmCsV42T401AckTimer(2)}"
description: "gsmCsV42T401AckTimer OBJECT-TYPE "
last-modified: "2017-12-20"
tags: [oid-repository]
---

## OID: `1.3.6.1.4.1.562.2.4.1.127.5.10.1.2` (last updated: 2017-12-20)

```asn1
{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 562 magellan(2) passport(4) components(1) gsmCs(127) gsmCsV42(5) gsmCsV42ProvTable(10) gsmCsV42ProvEntry(1) gsmCsV42T401AckTimer(2)}
```

### Description

```asn1
gsmCsV42T401AckTimer OBJECT-TYPE 
SYNTAX FixedPoint2 (50..900) 
ACCESS read-write 
STATUS mandatory 
DESCRIPTION 
"This attribute specifies the maximum amount of time that the IWF 
waits for an acknowledgment before retransmitting a frame. Since 
information about the T401 timer is not carried in the Exchange 
Identification (XID) negotiations at call setup time, both sides 
operate with different timer values. The value for T401 depends on 
many factors, such as propagation delay or frame processing time. 
A frame is retransmitted up to N400 times if the timer T401 expires 
before an acknowledgment for a frame is actually received. The 
performance of the data link layer can be impacted by the value of 
this timer as retransmissions of frames occur on expiry of timer 
T401. 
Changes to this attribute do not effect existing calls." 
DEFVAL \{ 400 \}

**Classification**: MIB object for network management

### Child OIDs

No child OID

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