The table below looks at the statistics for X.21 skills in IT jobs advertised across the UK. Included is a guide to the salaries offered in IT jobs that have cited X.21 over the 3 months to 2 December 2016 with a comparison to the same period over the previous 2 years.

3 months to
2 Dec 2016
Same period 2015 Same period 2014
X.21
Rank - 960 974
Permanent jobs citing X.21 0 8 7
As % of all permanent IT jobs located in the UK - 0.007% 0.006%
As % of the Communications & Networking category - 0.045% 0.034%
Number of salaries quoted 0 8 7
Median salary - £27,500 £29,000
Median salary % change year-on-year
- -5.17%
UK excluding London median salary - £27,500 £29,000
% change year-on-year
- -5.17%

The following table is for comparison with the above and provides statistics for the entire Communications & Networking category in permanent jobs advertised across the UK.

Communications & Networking Category
UK
Permanent IT job ads with a match in the
Communications & Networking category
15747 17967 20766
As % of all permanent IT jobs located in the UK 17.30% 16.58% 18.02%
Number of salaries quoted 12739 14860 16695
Median salary £45,000 £45,000 £42,500
Median salary % change year-on-year
- +5.88%
90% offered a salary of more than £28,000 £26,500 £27,000
10% offered a salary of more than £70,000 £65,000 £70,000
UK excluding London median salary £42,500 £42,500 £40,000
% change year-on-year
- +6.25%

X.21
Jobs Demand Trend

The demand trend of job ads citing X.21 as a proportion of all IT jobs with a match in the Communications & Networking category.

X.21 Jobs Demand Trend in the UK

X.21
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing X.21 within the UK.

X.21 Salary Trend in the UK

X.21
Top 19 Related IT Skills

For the 6 months to 2 December 2016, IT jobs citing X.21 also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads with a requirement for X.21.

1 2 (100.00%) ITIL
1 2 (100.00%) WAN
1 2 (100.00%) Ethernet
1 2 (100.00%) PPP
1 2 (100.00%) SNMP
1 2 (100.00%) Cisco
1 2 (100.00%) CCNA
1 2 (100.00%) Cisco Certification
1 2 (100.00%) MPLS
1 2 (100.00%) OSPF
1 2 (100.00%) BGP
1 2 (100.00%) DSL
1 2 (100.00%) L2TP
1 2 (100.00%) Change Management
1 2 (100.00%) Firewall
1 2 (100.00%) ITSM
1 2 (100.00%) IPsec
1 2 (100.00%) xDSL
1 2 (100.00%) Network Management

X.21
Top Related IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Communications & Networking
1 2 (100.00%) BGP
1 2 (100.00%) DSL
1 2 (100.00%) Ethernet
1 2 (100.00%) Firewall
1 2 (100.00%) IPsec
1 2 (100.00%) L2TP
1 2 (100.00%) MPLS
1 2 (100.00%) OSPF
1 2 (100.00%) PPP
1 2 (100.00%) SNMP
1 2 (100.00%) WAN
1 2 (100.00%) xDSL
Job Titles
1 2 (100.00%) Network Engineer
1 2 (100.00%) Network Operations Engineer
1 2 (100.00%) Operations Engineer
Processes & Methodologies
1 2 (100.00%) Change Management
1 2 (100.00%) ITIL
1 2 (100.00%) ITSM
1 2 (100.00%) Network Management
Qualifications
1 2 (100.00%) CCNA
1 2 (100.00%) Cisco Certification
Vendors
1 2 (100.00%) Cisco