---
oid: "1.3.6.1.4.1.562.2.4.1.127.6.10.1.2"
asn1-notation: "{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 562 magellan(2) passport(4) components(1) gsmCs(127) gsmCsV42bis(6) gsmCsV42bisProvTable(10) gsmCsV42bisProvEntry(1) gsmCsV42bisMaximumCodewords(2)}"
description: "gsmCsV42bisMaximumCodewords OBJECT-TYPE "
last-modified: "2017-12-20"
tags: [oid-repository]
---

## OID: `1.3.6.1.4.1.562.2.4.1.127.6.10.1.2` (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) gsmCsV42bis(6) gsmCsV42bisProvTable(10) gsmCsV42bisProvEntry(1) gsmCsV42bisMaximumCodewords(2)}
```

### Description

```asn1
gsmCsV42bisMaximumCodewords OBJECT-TYPE 
SYNTAX Unsigned32 (512 \| 1024 \| 2048 \| 4096) 
ACCESS read-write 
STATUS mandatory 
DESCRIPTION 
"This attribute specifies the maximum number of V.42bis codewords 
the IWF supports. A codeword is a binary number that represents a 
string of characters in compressed form. V.42bis keeps a dictionary 
of codewords for each compression direction. During Exchange 
Identification (XID) negotiation of parameter P1 (number of 
codewords), both sides (IWF and mobile or IWF and Public 
Switched Telephone Network (PSTN)) agree on the total number of 
codewords in the dictionaries. Changes to this attribute impact the 
compression ratio for the encoder (component GsmV42BisOp 
attribute compRatioEncoder). Changes also impact the amount of 
memory used (more memory is used when increasing the attribute). 
The gain in performance obtained from the selection of a larger 
dictionary may be offset by the larger codeword size needed, and 
for certain types of data, better performance may be obtained by 
using a smaller dictionary. 
The negotiated value can be viewed in the component 
GsmIwfV42bisOp attribute maximumCodewords . Changes to this 
attribute do not effect existing calls." 
DEFVAL \{ 2048 \}

**Classification**: MIB object for network management

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