IBM Cloud Docs
Network latency dashboards

Network latency dashboards

The Inter-region latency dashboard provides the average network round-trip latency (round-trip time or RTT) for all pairs of regions in IBM Cloud®. The dashboard shows a snapshot of inter-region RTT expressed in milliseconds. This snapshot is an average of multiple measurements over the previous 30 days. For each measurement, a pair of Linux VMs (of cx2-8x16 profile) is provisioned in the two corresponding regions in IBM Cloud. VM-to-VM network connectivity is provided by the Transit Gateway. Netperf TCP RR test is used for measuring the VM-to-VM latency between regions.

The Inter-AZ latency dashboard provides the average network RTT latency within a zone (Intra-Zone) and between availability zones (Inter-Zone) in a multi-zone region (MZR) in IBM Cloud. The dashboard shows a snapshot of inter-availability zone RTT expressed in milliseconds. This snapshot is an average of multiple measurements over the previous 30 days. For each measurement, a pair of Linux VMs (of cx2-8x16 profile) is provisioned in the two corresponding availability zones in the same VPC. VM-to-VM network connectivity is provided by the private network within the VPC. Netperf TCP RR test is used for measuring the VM-to-VM latency between the availability zones. The latency between storage and compute instances within the same zone is dependent on workload characteristics, and on average, expected target latency is in single-digit ms.

The results reported are as measured. There are no performance guarantees implied by these dashboards. These statistics provide visibility into latency between all regions and zones to help you plan the optimal selection for your cloud deployment and plan for scenarios, such as data residency and performance. These dashboards are not intended for use in troubleshooting.

For information about the mapping between regions and zones, see Zone mapping per account.

30 Mar 2025

Inter-region latency

1 Mar 2025–30 Mar 2025
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Osaka Sydney Tokyo Sao Paulo
Dallas 34 31 123 113 117 150 185 142 141
Toronto 34 19 92 82 106 170 214 162 129
Washington DC 31 19 88 76 88 176 214 171 120
Frankfurt 123 92 87 13 29 233 250 225 193
London 113 82 76 13 27 245 262 237 187
Madrid 116 105 87 29 27 258 276 251 208
Osaka 149 170 175 233 244 260 123 9 290
Sydney 184 216 214 250 262 276 123 117 325
Tokyo 143 162 167 225 237 251 9 117 281
Sao Paulo 140 128 124 196 188 207 289 325 282

Inter-AZ latency

1 Mar 2025–30 Mar 2025
Average latency (ms) us-south-dal10-a us-south-dal12-a us-south-dal13-a us-south-dal14-a
us-south-dal10-a 0.09 1.76 1.91 2.17
us-south-dal12-a 1.76 0.1 1.89 2.15
us-south-dal13-a 1.91 1.89 0.1 2.31
us-south-dal14-a 2.17 2.15 2.31 0.1
1 Mar 2025–30 Mar 2025
Average latency (ms) ca-tor-tor01-a ca-tor-tor04-a ca-tor-tor05-a
ca-tor-tor01-a 0.1 1.52 1.74
ca-tor-tor04-a 1.52 0.09 1.7
ca-tor-tor05-a 1.74 1.7 0.1
1 Mar 2025–30 Mar 2025
Average latency (ms) us-east-wdc04-a us-east-wdc06-a us-east-wdc07-a
us-east-wdc04-a 0.09 0.64 0.67
us-east-wdc06-a 0.64 0.1 0.6
us-east-wdc07-a 0.67 0.6 0.08
1 Mar 2025–30 Mar 2025
Average latency (ms) eu-de-fra02-a eu-de-fra04-a eu-de-fra05-a
eu-de-fra02-a 0.11 0.74 0.67
eu-de-fra04-a 0.74 0.11 0.66
eu-de-fra05-a 0.67 0.66 0.12
1 Mar 2025–30 Mar 2025
Average latency (ms) eu-gb-lon04-a eu-gb-lon05-a eu-gb-lon06-a
eu-gb-lon04-a 0.08 2.18 1.99
eu-gb-lon05-a 2.18 0.08 1.71
eu-gb-lon06-a 1.99 1.71 0.09
1 Mar 2025–30 Mar 2025
Average latency (ms) eu-es-mad02-a eu-es-mad04-a eu-es-mad05-a
eu-es-mad02-a 0.1 0.68 0.61
eu-es-mad04-a 0.68 0.1 0.79
eu-es-mad05-a 0.61 0.79 0.1
1 Mar 2025–30 Mar 2025
Average latency (ms) jp-osa-osa21-a jp-osa-osa22-a jp-osa-osa23-a
jp-osa-osa21-a 0.1 1.48 1.42
jp-osa-osa22-a 1.48 0.1 1.48
jp-osa-osa23-a 1.42 1.48 0.1
1 Mar 2025–30 Mar 2025
Average latency (ms) au-syd-syd01-a au-syd-syd04-a au-syd-syd05-a
au-syd-syd01-a 0.09 1.62 0.91
au-syd-syd04-a 1.62 0.09 1.78
au-syd-syd05-a 0.91 1.78 0.1
1 Mar 2025–30 Mar 2025
Average latency (ms) jp-tok-tok02-a jp-tok-tok04-a jp-tok-tok05-a
jp-tok-tok02-a 0.1 1.47 0.97
jp-tok-tok04-a 1.47 0.11 1.67
jp-tok-tok05-a 0.97 1.67 0.1
1 Mar 2025–30 Mar 2025
Average latency (ms) br-sao-sao01-a br-sao-sao04-a br-sao-sao05-a
br-sao-sao01-a 0.09 1.64 2.7
br-sao-sao04-a 1.64 0.08 1.94
br-sao-sao05-a 2.7 1.94 0.1

23 Mar 2025

Inter-region latency

22 Feb 2025–23 Mar 2025
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Osaka Sydney Tokyo Sao Paulo
Dallas 34 31 123 113 117 151 184 142 141
Toronto 34 19 92 83 105 171 213 162 132
Washington DC 31 19 87 76 88 176 214 171 119
Frankfurt 123 92 87 13 29 233 250 225 195
London 113 83 76 13 27 244 262 237 188
Madrid 117 105 87 29 27 259 276 251 208
Osaka 150 170 175 233 244 259 124 9 290
Sydney 184 215 214 250 262 277 123 117 324
Tokyo 143 163 167 225 237 251 9 117 282
Sao Paulo 141 131 122 199 191 205 289 325 283

Inter-AZ latency

22 Feb 2025–23 Mar 2025
Average latency (ms) us-south-dal10-a us-south-dal12-a us-south-dal13-a us-south-dal14-a
us-south-dal10-a 0.09 1.77 1.91 2.16
us-south-dal12-a 1.77 0.1 1.89 2.14
us-south-dal13-a 1.91 1.89 0.1 2.3
us-south-dal14-a 2.16 2.14 2.3 0.1
22 Feb 2025–23 Mar 2025
Average latency (ms) ca-tor-tor01-a ca-tor-tor04-a ca-tor-tor05-a
ca-tor-tor01-a 0.1 1.52 1.73
ca-tor-tor04-a 1.52 0.09 1.7
ca-tor-tor05-a 1.73 1.7 0.1
22 Feb 2025–23 Mar 2025
Average latency (ms) us-east-wdc04-a us-east-wdc06-a us-east-wdc07-a
us-east-wdc04-a 0.09 0.65 0.65
us-east-wdc06-a 0.65 0.11 0.59
us-east-wdc07-a 0.65 0.59 0.08
22 Feb 2025–23 Mar 2025
Average latency (ms) eu-de-fra02-a eu-de-fra04-a eu-de-fra05-a
eu-de-fra02-a 0.11 0.74 0.66
eu-de-fra04-a 0.74 0.11 0.66
eu-de-fra05-a 0.66 0.66 0.12
22 Feb 2025–23 Mar 2025
Average latency (ms) eu-gb-lon04-a eu-gb-lon05-a eu-gb-lon06-a
eu-gb-lon04-a 0.08 2.18 2.04
eu-gb-lon05-a 2.18 0.08 1.72
eu-gb-lon06-a 2.04 1.72 0.09
22 Feb 2025–23 Mar 2025
Average latency (ms) eu-es-mad02-a eu-es-mad04-a eu-es-mad05-a
eu-es-mad02-a 0.09 0.67 0.61
eu-es-mad04-a 0.67 0.11 0.8
eu-es-mad05-a 0.61 0.8 0.09
22 Feb 2025–23 Mar 2025
Average latency (ms) jp-osa-osa21-a jp-osa-osa22-a jp-osa-osa23-a
jp-osa-osa21-a 0.1 1.48 1.42
jp-osa-osa22-a 1.48 0.1 1.46
jp-osa-osa23-a 1.42 1.46 0.1
22 Feb 2025–23 Mar 2025
Average latency (ms) au-syd-syd01-a au-syd-syd04-a au-syd-syd05-a
au-syd-syd01-a 0.09 1.61 0.93
au-syd-syd04-a 1.61 0.09 1.8
au-syd-syd05-a 0.93 1.8 0.1
22 Feb 2025–23 Mar 2025
Average latency (ms) jp-tok-tok02-a jp-tok-tok04-a jp-tok-tok05-a
jp-tok-tok02-a 0.1 1.45 0.97
jp-tok-tok04-a 1.45 0.1 1.68
jp-tok-tok05-a 0.97 1.68 0.1
22 Feb 2025–23 Mar 2025
Average latency (ms) br-sao-sao01-a br-sao-sao04-a br-sao-sao05-a
br-sao-sao01-a 0.09 1.64 2.7
br-sao-sao04-a 1.64 0.08 1.93
br-sao-sao05-a 2.7 1.93 0.1

16 Mar 2025

Inter-region latency

15 Feb 2025–16 Mar 2025
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Osaka Sydney Tokyo Sao Paulo
Dallas 34 31 124 115 116 150 184 142 140
Toronto 34 19 95 86 106 173 214 163 137
Washington DC 31 19 89 78 88 176 213 171 118
Frankfurt 124 95 89 13 29 232 250 225 201
London 117 87 78 13 27 244 262 237 197
Madrid 118 106 86 29 27 259 276 251 206
Osaka 150 170 175 232 244 259 123 9 290
Sydney 185 215 214 250 262 277 123 116 323
Tokyo 142 162 168 225 236 251 9 117 282
Sao Paulo 141 138 117 204 197 206 288 325 283

Inter-AZ latency

15 Feb 2025–16 Mar 2025
Average latency (ms) us-south-dal10-a us-south-dal12-a us-south-dal13-a us-south-dal14-a
us-south-dal10-a 0.09 1.78 1.91 2.15
us-south-dal12-a 1.78 0.1 1.9 2.13
us-south-dal13-a 1.91 1.9 0.1 2.3
us-south-dal14-a 2.15 2.13 2.3 0.1
15 Feb 2025–16 Mar 2025
Average latency (ms) ca-tor-tor01-a ca-tor-tor04-a ca-tor-tor05-a
ca-tor-tor01-a 0.1 1.51 1.73
ca-tor-tor04-a 1.51 0.1 1.71
ca-tor-tor05-a 1.73 1.71 0.1
15 Feb 2025–16 Mar 2025
Average latency (ms) us-east-wdc04-a us-east-wdc06-a us-east-wdc07-a
us-east-wdc04-a 0.09 0.65 0.65
us-east-wdc06-a 0.65 0.11 0.57
us-east-wdc07-a 0.65 0.57 0.08
15 Feb 2025–16 Mar 2025
Average latency (ms) eu-de-fra02-a eu-de-fra04-a eu-de-fra05-a
eu-de-fra02-a 0.1 0.74 0.66
eu-de-fra04-a 0.74 0.11 0.66
eu-de-fra05-a 0.66 0.66 0.12
15 Feb 2025–16 Mar 2025
Average latency (ms) eu-gb-lon04-a eu-gb-lon05-a eu-gb-lon06-a
eu-gb-lon04-a 0.08 2.17 2.02
eu-gb-lon05-a 2.17 0.08 1.8
eu-gb-lon06-a 2.02 1.8 0.09
15 Feb 2025–16 Mar 2025
Average latency (ms) eu-es-mad02-a eu-es-mad04-a eu-es-mad05-a
eu-es-mad02-a 0.1 0.67 0.61
eu-es-mad04-a 0.67 0.11 0.79
eu-es-mad05-a 0.61 0.79 0.1
15 Feb 2025–16 Mar 2025
Average latency (ms) jp-osa-osa21-a jp-osa-osa22-a jp-osa-osa23-a
jp-osa-osa21-a 0.09 1.45 1.42
jp-osa-osa22-a 1.45 0.1 1.44
jp-osa-osa23-a 1.42 1.44 0.1
15 Feb 2025–16 Mar 2025
Average latency (ms) au-syd-syd01-a au-syd-syd04-a au-syd-syd05-a
au-syd-syd01-a 0.09 1.61 0.9
au-syd-syd04-a 1.61 0.09 1.8
au-syd-syd05-a 0.9 1.8 0.1
15 Feb 2025–16 Mar 2025
Average latency (ms) jp-tok-tok02-a jp-tok-tok04-a jp-tok-tok05-a
jp-tok-tok02-a 0.1 1.47 0.97
jp-tok-tok04-a 1.47 0.1 1.69
jp-tok-tok05-a 0.97 1.69 0.1
15 Feb 2025–16 Mar 2025
Average latency (ms) br-sao-sao01-a br-sao-sao04-a br-sao-sao05-a
br-sao-sao01-a 0.09 1.65 2.67
br-sao-sao04-a 1.65 0.08 1.93
br-sao-sao05-a 2.67 1.93 0.1

9 Mar 2025

Inter-region latency

8 Feb 2025–9 Mar 2025
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Osaka Sydney Tokyo Sao Paulo
Dallas 35 31 124 118 116 150 185 142 140
Toronto 34 19 99 93 106 172 213 163 137
Washington DC 31 19 90 82 89 176 213 170 119
Frankfurt 125 99 90 13 29 232 250 225 204
London 119 93 82 13 27 244 262 236 200
Madrid 118 104 86 29 27 259 276 251 205
Osaka 150 169 174 233 244 259 123 9 289
Sydney 185 215 212 250 262 276 122 116 324
Tokyo 143 163 168 225 236 251 9 116 282
Sao Paulo 141 143 118 204 201 207 288 325 283

Inter-AZ latency

8 Feb 2025–9 Mar 2025
Average latency (ms) us-south-dal10-a us-south-dal12-a us-south-dal13-a us-south-dal14-a
us-south-dal10-a 0.09 1.77 1.91 2.14
us-south-dal12-a 1.77 0.1 1.92 2.12
us-south-dal13-a 1.91 1.92 0.09 2.28
us-south-dal14-a 2.14 2.12 2.28 0.09
8 Feb 2025–9 Mar 2025
Average latency (ms) ca-tor-tor01-a ca-tor-tor04-a ca-tor-tor05-a
ca-tor-tor01-a 0.1 1.52 1.74
ca-tor-tor04-a 1.52 0.09 1.71
ca-tor-tor05-a 1.74 1.71 0.1
8 Feb 2025–9 Mar 2025
Average latency (ms) us-east-wdc04-a us-east-wdc06-a us-east-wdc07-a
us-east-wdc04-a 0.09 0.65 0.66
us-east-wdc06-a 0.65 0.11 0.59
us-east-wdc07-a 0.66 0.59 0.08
8 Feb 2025–9 Mar 2025
Average latency (ms) eu-de-fra02-a eu-de-fra04-a eu-de-fra05-a
eu-de-fra02-a 0.1 0.75 0.67
eu-de-fra04-a 0.75 0.1 0.68
eu-de-fra05-a 0.67 0.68 0.13
8 Feb 2025–9 Mar 2025
Average latency (ms) eu-gb-lon04-a eu-gb-lon05-a eu-gb-lon06-a
eu-gb-lon04-a 0.08 2.19 1.99
eu-gb-lon05-a 2.19 0.08 1.83
eu-gb-lon06-a 1.99 1.83 0.09
8 Feb 2025–9 Mar 2025
Average latency (ms) eu-es-mad02-a eu-es-mad04-a eu-es-mad05-a
eu-es-mad02-a 0.1 0.67 0.61
eu-es-mad04-a 0.67 0.11 0.8
eu-es-mad05-a 0.61 0.8 0.1
8 Feb 2025–9 Mar 2025
Average latency (ms) jp-osa-osa21-a jp-osa-osa22-a jp-osa-osa23-a
jp-osa-osa21-a 0.09 1.45 1.44
jp-osa-osa22-a 1.45 0.1 1.44
jp-osa-osa23-a 1.44 1.44 0.1
8 Feb 2025–9 Mar 2025
Average latency (ms) au-syd-syd01-a au-syd-syd04-a au-syd-syd05-a
au-syd-syd01-a 0.09 1.61 0.89
au-syd-syd04-a 1.61 0.09 1.81
au-syd-syd05-a 0.89 1.81 0.1
8 Feb 2025–9 Mar 2025
Average latency (ms) jp-tok-tok02-a jp-tok-tok04-a jp-tok-tok05-a
jp-tok-tok02-a 0.1 1.48 0.98
jp-tok-tok04-a 1.48 0.11 1.69
jp-tok-tok05-a 0.98 1.69 0.1
8 Feb 2025–9 Mar 2025
Average latency (ms) br-sao-sao01-a br-sao-sao04-a br-sao-sao05-a
br-sao-sao01-a 0.09 1.68 2.65
br-sao-sao04-a 1.68 0.09 1.94
br-sao-sao05-a 2.65 1.94 0.1

2 Mar 2025

Inter-region latency

1 Feb 2025–2 Mar 2025
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Osaka Sydney Tokyo Sao Paulo
Dallas 34 31 124 119 117 151 184 142 140
Toronto 34 20 100 94 106 172 214 163 134
Washington DC 31 19 91 84 89 176 212 168 119
Frankfurt 125 101 90 13 29 232 250 225 206
London 119 97 84 13 27 243 261 236 201
Madrid 118 105 87 29 27 259 276 250 205
Osaka 150 170 176 233 244 259 123 9 289
Sydney 185 214 210 250 262 277 122 115 323
Tokyo 142 165 169 225 236 250 9 115 282
Sao Paulo 142 140 118 206 199 206 288 326 283

Inter-AZ latency

1 Feb 2025–2 Mar 2025
Average latency (ms) us-south-dal10-a us-south-dal12-a us-south-dal13-a us-south-dal14-a
us-south-dal10-a 0.09 1.75 1.93 2.14
us-south-dal12-a 1.75 0.1 1.93 2.14
us-south-dal13-a 1.93 1.93 0.09 2.28
us-south-dal14-a 2.14 2.14 2.28 0.09
1 Feb 2025–2 Mar 2025
Average latency (ms) ca-tor-tor01-a ca-tor-tor04-a ca-tor-tor05-a
ca-tor-tor01-a 0.1 1.53 1.74
ca-tor-tor04-a 1.53 0.09 1.72
ca-tor-tor05-a 1.74 1.72 0.1
1 Feb 2025–2 Mar 2025
Average latency (ms) us-east-wdc04-a us-east-wdc06-a us-east-wdc07-a
us-east-wdc04-a 0.09 0.67 0.66
us-east-wdc06-a 0.67 0.11 0.6
us-east-wdc07-a 0.66 0.6 0.08
1 Feb 2025–2 Mar 2025
Average latency (ms) eu-de-fra02-a eu-de-fra04-a eu-de-fra05-a
eu-de-fra02-a 0.1 0.75 0.67
eu-de-fra04-a 0.75 0.1 0.67
eu-de-fra05-a 0.67 0.67 0.12
1 Feb 2025–2 Mar 2025
Average latency (ms) eu-gb-lon04-a eu-gb-lon05-a eu-gb-lon06-a
eu-gb-lon04-a 0.08 2.18 1.98
eu-gb-lon05-a 2.18 0.09 1.79
eu-gb-lon06-a 1.98 1.79 0.09
1 Feb 2025–2 Mar 2025
Average latency (ms) eu-es-mad02-a eu-es-mad04-a eu-es-mad05-a
eu-es-mad02-a 0.1 0.67 0.61
eu-es-mad04-a 0.67 0.12 0.8
eu-es-mad05-a 0.61 0.8 0.1
1 Feb 2025–2 Mar 2025
Average latency (ms) jp-osa-osa21-a jp-osa-osa22-a jp-osa-osa23-a
jp-osa-osa21-a 0.09 1.44 1.48
jp-osa-osa22-a 1.44 0.1 1.44
jp-osa-osa23-a 1.48 1.44 0.1
1 Feb 2025–2 Mar 2025
Average latency (ms) au-syd-syd01-a au-syd-syd04-a au-syd-syd05-a
au-syd-syd01-a 0.1 1.61 0.88
au-syd-syd04-a 1.61 0.09 1.8
au-syd-syd05-a 0.88 1.8 0.1
1 Feb 2025–2 Mar 2025
Average latency (ms) jp-tok-tok02-a jp-tok-tok04-a jp-tok-tok05-a
jp-tok-tok02-a 0.1 1.49 0.97
jp-tok-tok04-a 1.49 0.11 1.68
jp-tok-tok05-a 0.97 1.68 0.1
1 Feb 2025–2 Mar 2025
Average latency (ms) br-sao-sao01-a br-sao-sao04-a br-sao-sao05-a
br-sao-sao01-a 0.09 1.71 2.65
br-sao-sao04-a 1.71 0.09 1.94
br-sao-sao05-a 2.65 1.94 0.1