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.

8 Jun 2025

Inter-region latency

10 May 2025–8 Jun 2025
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Montreal Osaka Sydney Tokyo Sao Paulo
Dallas 34 31 122 112 115 42 149 184 142 143
Toronto 35 19 92 82 104 10 170 214 163 129
Washington DC 31 20 87 75 86 16 176 212 168 119
Frankfurt 122 93 88 13 29 89 235 249 225 197
London 113 82 75 13 27 79 246 261 236 188
Madrid 116 105 84 29 27 101 261 275 251 205
Montreal 42 11 16 89 79 102 179 224 172 126
Osaka 148 170 175 234 246 261 178 126 9 290
Sydney 184 214 213 249 261 275 222 124 116 324
Tokyo 143 164 166 224 236 250 172 9 117 282
Sao Paulo 142 129 120 196 187 204 127 290 322 283

Inter-AZ latency

10 May 2025–8 Jun 2025
Average latency (ms) us-south-dal10-a us-south-dal12-a us-south-dal13-a us-south-dal14-a
us-south-dal10-a 0.1 1.97 2.11 2.22
us-south-dal12-a 1.97 0.11 2.04 2.22
us-south-dal13-a 2.11 2.04 0.11 2.33
us-south-dal14-a 2.22 2.22 2.33 0.1
10 May 2025–8 Jun 2025
Average latency (ms) ca-tor-tor01-a ca-tor-tor04-a ca-tor-tor05-a
ca-tor-tor01-a 0.1 1.55 1.69
ca-tor-tor04-a 1.55 0.1 1.63
ca-tor-tor05-a 1.69 1.63 0.1
10 May 2025–8 Jun 2025
Average latency (ms) us-east-wdc04-a us-east-wdc06-a us-east-wdc07-a
us-east-wdc04-a 0.09 0.68 0.67
us-east-wdc06-a 0.68 0.12 0.68
us-east-wdc07-a 0.67 0.68 0.08
10 May 2025–8 Jun 2025
Average latency (ms) eu-de-fra02-a eu-de-fra04-a eu-de-fra05-a
eu-de-fra02-a 0.11 0.77 0.68
eu-de-fra04-a 0.77 0.11 0.64
eu-de-fra05-a 0.68 0.64 0.11
10 May 2025–8 Jun 2025
Average latency (ms) eu-gb-lon04-a eu-gb-lon05-a eu-gb-lon06-a
eu-gb-lon04-a 0.09 2.19 2.0
eu-gb-lon05-a 2.19 0.08 1.65
eu-gb-lon06-a 2.0 1.65 0.08
10 May 2025–8 Jun 2025
Average latency (ms) eu-es-mad02-a eu-es-mad04-a eu-es-mad05-a
eu-es-mad02-a 0.09 0.67 0.62
eu-es-mad04-a 0.67 0.12 0.79
eu-es-mad05-a 0.62 0.79 0.09
10 May 2025–8 Jun 2025
Average latency (ms) ca-mon-mon04-a ca-mon-mon04-b ca-mon-mon04-c
ca-mon-mon04-a 0.08 0.17 0.17
ca-mon-mon04-b 0.17 0.08 0.16
ca-mon-mon04-c 0.17 0.16 0.08
10 May 2025–8 Jun 2025
Average latency (ms) jp-osa-osa21-a jp-osa-osa22-a jp-osa-osa23-a
jp-osa-osa21-a 0.1 1.44 1.47
jp-osa-osa22-a 1.44 0.1 1.45
jp-osa-osa23-a 1.47 1.45 0.1
10 May 2025–8 Jun 2025
Average latency (ms) au-syd-syd01-a au-syd-syd04-a au-syd-syd05-a
au-syd-syd01-a 0.09 1.66 0.91
au-syd-syd04-a 1.66 0.09 1.78
au-syd-syd05-a 0.91 1.78 0.1
10 May 2025–8 Jun 2025
Average latency (ms) jp-tok-tok02-a jp-tok-tok04-a jp-tok-tok05-a
jp-tok-tok02-a 0.1 1.48 0.96
jp-tok-tok04-a 1.48 0.1 1.71
jp-tok-tok05-a 0.96 1.71 0.1
10 May 2025–8 Jun 2025
Average latency (ms) br-sao-sao01-a br-sao-sao04-a br-sao-sao05-a
br-sao-sao01-a 0.08 1.66 2.71
br-sao-sao04-a 1.66 0.08 1.95
br-sao-sao05-a 2.71 1.95 0.1

1 Jun 2025

Inter-region latency

3 May 2025–1 Jun 2025
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Montreal Osaka Sydney Tokyo Sao Paulo
Dallas 34 31 122 112 115 42 149 184 143 143
Toronto 34 19 93 82 104 10 171 214 163 129
Washington DC 31 20 87 75 86 16 176 213 167 119
Frankfurt 122 92 87 13 29 89 235 249 225 196
London 112 82 75 13 26 79 246 264 236 187
Madrid 116 104 85 29 27 100 261 276 251 205
Montreal 42 11 16 89 79 101 179 225 171 125
Osaka 149 170 174 234 246 260 177 124 9 290
Sydney 184 215 213 249 261 275 220 124 116 325
Tokyo 143 164 166 224 236 251 171 9 117 282
Sao Paulo 142 129 120 195 187 205 127 289 324 283

Inter-AZ latency

3 May 2025–1 Jun 2025
Average latency (ms) us-south-dal10-a us-south-dal12-a us-south-dal13-a us-south-dal14-a
us-south-dal10-a 0.1 1.94 2.06 2.22
us-south-dal12-a 1.94 0.1 1.97 2.18
us-south-dal13-a 2.06 1.97 0.1 2.32
us-south-dal14-a 2.22 2.18 2.32 0.1
3 May 2025–1 Jun 2025
Average latency (ms) ca-tor-tor01-a ca-tor-tor04-a ca-tor-tor05-a
ca-tor-tor01-a 0.1 1.56 1.7
ca-tor-tor04-a 1.56 0.1 1.64
ca-tor-tor05-a 1.7 1.64 0.1
3 May 2025–1 Jun 2025
Average latency (ms) us-east-wdc04-a us-east-wdc06-a us-east-wdc07-a
us-east-wdc04-a 0.09 0.67 0.69
us-east-wdc06-a 0.67 0.12 0.68
us-east-wdc07-a 0.69 0.68 0.08
3 May 2025–1 Jun 2025
Average latency (ms) eu-de-fra02-a eu-de-fra04-a eu-de-fra05-a
eu-de-fra02-a 0.1 0.76 0.67
eu-de-fra04-a 0.76 0.1 0.65
eu-de-fra05-a 0.67 0.65 0.11
3 May 2025–1 Jun 2025
Average latency (ms) eu-gb-lon04-a eu-gb-lon05-a eu-gb-lon06-a
eu-gb-lon04-a 0.09 2.17 1.99
eu-gb-lon05-a 2.17 0.08 1.65
eu-gb-lon06-a 1.99 1.65 0.09
3 May 2025–1 Jun 2025
Average latency (ms) eu-es-mad02-a eu-es-mad04-a eu-es-mad05-a
eu-es-mad02-a 0.09 0.68 0.62
eu-es-mad04-a 0.68 0.12 0.8
eu-es-mad05-a 0.62 0.8 0.1
3 May 2025–1 Jun 2025
Average latency (ms) ca-mon-mon04-a ca-mon-mon04-b ca-mon-mon04-c
ca-mon-mon04-a 0.08 0.17 0.17
ca-mon-mon04-b 0.17 0.08 0.16
ca-mon-mon04-c 0.17 0.16 0.08
3 May 2025–1 Jun 2025
Average latency (ms) jp-osa-osa21-a jp-osa-osa22-a jp-osa-osa23-a
jp-osa-osa21-a 0.1 1.45 1.45
jp-osa-osa22-a 1.45 0.1 1.45
jp-osa-osa23-a 1.45 1.45 0.1
3 May 2025–1 Jun 2025
Average latency (ms) au-syd-syd01-a au-syd-syd04-a au-syd-syd05-a
au-syd-syd01-a 0.09 1.66 0.86
au-syd-syd04-a 1.66 0.08 1.78
au-syd-syd05-a 0.86 1.78 0.1
3 May 2025–1 Jun 2025
Average latency (ms) jp-tok-tok02-a jp-tok-tok04-a jp-tok-tok05-a
jp-tok-tok02-a 0.1 1.5 0.97
jp-tok-tok04-a 1.5 0.1 1.73
jp-tok-tok05-a 0.97 1.73 0.1
3 May 2025–1 Jun 2025
Average latency (ms) br-sao-sao01-a br-sao-sao04-a br-sao-sao05-a
br-sao-sao01-a 0.08 1.65 2.74
br-sao-sao04-a 1.65 0.08 1.95
br-sao-sao05-a 2.74 1.95 0.1

25 May 2025

Inter-region latency

26 Apr 2025–25 May 2025
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Montreal Osaka Sydney Tokyo Sao Paulo
Dallas 34 32 122 112 114 42 149 184 142 142
Toronto 35 19 93 82 103 10 171 214 164 128
Washington DC 31 20 85 75 85 16 175 212 168 118
Frankfurt 122 92 85 13 29 89 234 249 225 194
London 112 82 75 13 27 79 245 264 236 185
Madrid 116 104 84 30 27 100 260 276 251 206
Montreal 42 10 16 89 79 100 179 224 173 124
Osaka 149 171 174 234 246 259 178 124 9 289
Sydney 184 215 212 249 261 275 221 124 116 325
Tokyo 143 163 166 224 236 251 171 9 117 282
Sao Paulo 141 128 121 194 186 206 125 289 324 283

Inter-AZ latency

26 Apr 2025–25 May 2025
Average latency (ms) us-south-dal10-a us-south-dal12-a us-south-dal13-a us-south-dal14-a
us-south-dal10-a 0.1 1.9 1.99 2.21
us-south-dal12-a 1.9 0.09 1.96 2.17
us-south-dal13-a 1.99 1.96 0.09 2.33
us-south-dal14-a 2.21 2.17 2.33 0.1
26 Apr 2025–25 May 2025
Average latency (ms) ca-tor-tor01-a ca-tor-tor04-a ca-tor-tor05-a
ca-tor-tor01-a 0.1 1.55 1.71
ca-tor-tor04-a 1.55 0.1 1.63
ca-tor-tor05-a 1.71 1.63 0.1
26 Apr 2025–25 May 2025
Average latency (ms) us-east-wdc04-a us-east-wdc06-a us-east-wdc07-a
us-east-wdc04-a 0.09 0.67 0.68
us-east-wdc06-a 0.67 0.12 0.68
us-east-wdc07-a 0.68 0.68 0.08
26 Apr 2025–25 May 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 0.65
eu-de-fra05-a 0.66 0.65 0.11
26 Apr 2025–25 May 2025
Average latency (ms) eu-gb-lon04-a eu-gb-lon05-a eu-gb-lon06-a
eu-gb-lon04-a 0.09 2.17 1.92
eu-gb-lon05-a 2.17 0.08 1.68
eu-gb-lon06-a 1.92 1.68 0.09
26 Apr 2025–25 May 2025
Average latency (ms) eu-es-mad02-a eu-es-mad04-a eu-es-mad05-a
eu-es-mad02-a 0.1 0.69 0.63
eu-es-mad04-a 0.69 0.13 0.78
eu-es-mad05-a 0.63 0.78 0.09
26 Apr 2025–25 May 2025
Average latency (ms) ca-mon-mon04-a ca-mon-mon04-b ca-mon-mon04-c
ca-mon-mon04-a 0.08 0.17 0.17
ca-mon-mon04-b 0.17 0.08 0.16
ca-mon-mon04-c 0.17 0.16 0.08
26 Apr 2025–25 May 2025
Average latency (ms) jp-osa-osa21-a jp-osa-osa22-a jp-osa-osa23-a
jp-osa-osa21-a 0.1 1.46 1.44
jp-osa-osa22-a 1.46 0.1 1.45
jp-osa-osa23-a 1.44 1.45 0.1
26 Apr 2025–25 May 2025
Average latency (ms) au-syd-syd01-a au-syd-syd04-a au-syd-syd05-a
au-syd-syd01-a 0.09 1.64 0.83
au-syd-syd04-a 1.64 0.09 1.77
au-syd-syd05-a 0.83 1.77 0.09
26 Apr 2025–25 May 2025
Average latency (ms) jp-tok-tok02-a jp-tok-tok04-a jp-tok-tok05-a
jp-tok-tok02-a 0.1 1.51 0.97
jp-tok-tok04-a 1.51 0.1 1.74
jp-tok-tok05-a 0.97 1.74 0.1
26 Apr 2025–25 May 2025
Average latency (ms) br-sao-sao01-a br-sao-sao04-a br-sao-sao05-a
br-sao-sao01-a 0.08 1.66 2.75
br-sao-sao04-a 1.66 0.08 1.95
br-sao-sao05-a 2.75 1.95 0.1

18 May 2025

Inter-region latency

19 Apr 2025–18 May 2025
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Montreal Osaka Sydney Tokyo Sao Paulo
Dallas 34 31 122 112 115 42 149 183 142 142
Toronto 34 19 93 83 104 10 171 214 163 127
Washington DC 31 19 85 75 86 16 176 213 169 118
Frankfurt 123 92 85 13 29 89 233 249 224 193
London 112 82 75 13 27 79 244 263 236 183
Madrid 116 104 86 29 27 100 259 276 250 205
Montreal 42 11 16 89 79 101 179 224 172 123
Osaka 150 171 175 233 245 258 178 124 9 289
Sydney 184 214 212 249 261 275 221 125 119 325
Tokyo 142 163 167 224 236 251 172 9 117 283
Sao Paulo 141 127 119 193 183 207 123 289 324 282

Inter-AZ latency

19 Apr 2025–18 May 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 1.85 1.95 2.17
us-south-dal12-a 1.85 0.1 1.93 2.22
us-south-dal13-a 1.95 1.93 0.09 2.35
us-south-dal14-a 2.17 2.22 2.35 0.1
19 Apr 2025–18 May 2025
Average latency (ms) ca-tor-tor01-a ca-tor-tor04-a ca-tor-tor05-a
ca-tor-tor01-a 0.1 1.55 1.71
ca-tor-tor04-a 1.55 0.1 1.63
ca-tor-tor05-a 1.71 1.63 0.1
19 Apr 2025–18 May 2025
Average latency (ms) us-east-wdc04-a us-east-wdc06-a us-east-wdc07-a
us-east-wdc04-a 0.09 0.65 0.68
us-east-wdc06-a 0.65 0.12 0.66
us-east-wdc07-a 0.68 0.66 0.08
19 Apr 2025–18 May 2025
Average latency (ms) eu-de-fra02-a eu-de-fra04-a eu-de-fra05-a
eu-de-fra02-a 0.1 0.73 0.64
eu-de-fra04-a 0.73 0.11 0.66
eu-de-fra05-a 0.64 0.66 0.11
19 Apr 2025–18 May 2025
Average latency (ms) eu-gb-lon04-a eu-gb-lon05-a eu-gb-lon06-a
eu-gb-lon04-a 0.08 2.17 1.94
eu-gb-lon05-a 2.17 0.08 1.63
eu-gb-lon06-a 1.94 1.63 0.09
19 Apr 2025–18 May 2025
Average latency (ms) eu-es-mad02-a eu-es-mad04-a eu-es-mad05-a
eu-es-mad02-a 0.1 0.69 0.62
eu-es-mad04-a 0.69 0.12 0.77
eu-es-mad05-a 0.62 0.77 0.1
19 Apr 2025–18 May 2025
Average latency (ms) ca-mon-mon04-a ca-mon-mon04-b ca-mon-mon04-c
ca-mon-mon04-a 0.08 0.16 0.17
ca-mon-mon04-b 0.16 0.08 0.16
ca-mon-mon04-c 0.17 0.16 0.08
19 Apr 2025–18 May 2025
Average latency (ms) jp-osa-osa21-a jp-osa-osa22-a jp-osa-osa23-a
jp-osa-osa21-a 0.1 1.47 1.43
jp-osa-osa22-a 1.47 0.1 1.43
jp-osa-osa23-a 1.43 1.43 0.1
19 Apr 2025–18 May 2025
Average latency (ms) au-syd-syd01-a au-syd-syd04-a au-syd-syd05-a
au-syd-syd01-a 0.09 1.63 0.84
au-syd-syd04-a 1.63 0.09 1.81
au-syd-syd05-a 0.84 1.81 0.09
19 Apr 2025–18 May 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 0.1 1.74
jp-tok-tok05-a 0.97 1.74 0.1
19 Apr 2025–18 May 2025
Average latency (ms) br-sao-sao01-a br-sao-sao04-a br-sao-sao05-a
br-sao-sao01-a 0.08 1.66 2.71
br-sao-sao04-a 1.66 0.09 1.95
br-sao-sao05-a 2.71 1.95 0.1

11 May 2025

Inter-region latency

12 Apr 2025–11 May 2025
Average latency (ms) Dallas Toronto Washington DC Frankfurt London Madrid Montreal Osaka Sydney Tokyo Sao Paulo
Dallas 34 31 123 113 116 42 149 183 142 142
Toronto 34 19 93 84 104 10 172 214 163 127
Washington DC 31 19 86 75 86 16 176 213 168 119
Frankfurt 123 92 87 13 29 89 233 249 224 193
London 112 82 76 13 27 79 243 263 236 183
Madrid 116 104 87 29 27 102 259 276 250 205
Montreal 42 11 16 91 82 102 178 224 172 123
Osaka 150 171 175 233 245 258 178 124 9 289
Sydney 183 214 213 249 261 275 221 125 119 325
Tokyo 142 163 167 224 236 251 173 9 117 282
Sao Paulo 141 126 119 193 184 205 123 290 323 282

Inter-AZ latency

12 Apr 2025–11 May 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 1.81 1.91 2.16
us-south-dal12-a 1.81 0.1 1.91 2.2
us-south-dal13-a 1.91 1.91 0.09 2.34
us-south-dal14-a 2.16 2.2 2.34 0.1
12 Apr 2025–11 May 2025
Average latency (ms) ca-tor-tor01-a ca-tor-tor04-a ca-tor-tor05-a
ca-tor-tor01-a 0.1 1.55 1.73
ca-tor-tor04-a 1.55 0.09 1.68
ca-tor-tor05-a 1.73 1.68 0.1
12 Apr 2025–11 May 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 0.12 0.66
us-east-wdc07-a 0.67 0.66 0.08
12 Apr 2025–11 May 2025
Average latency (ms) eu-de-fra02-a eu-de-fra04-a eu-de-fra05-a
eu-de-fra02-a 0.1 0.73 0.65
eu-de-fra04-a 0.73 0.1 0.67
eu-de-fra05-a 0.65 0.67 0.12
12 Apr 2025–11 May 2025
Average latency (ms) eu-gb-lon04-a eu-gb-lon05-a eu-gb-lon06-a
eu-gb-lon04-a 0.08 2.18 1.95
eu-gb-lon05-a 2.18 0.08 1.61
eu-gb-lon06-a 1.95 1.61 0.09
12 Apr 2025–11 May 2025
Average latency (ms) eu-es-mad02-a eu-es-mad04-a eu-es-mad05-a
eu-es-mad02-a 0.1 0.69 0.62
eu-es-mad04-a 0.69 0.11 0.78
eu-es-mad05-a 0.62 0.78 0.1
12 Apr 2025–11 May 2025
Average latency (ms) ca-mon-mon04-a ca-mon-mon04-b ca-mon-mon04-c
ca-mon-mon04-a 0.08 0.16 0.17
ca-mon-mon04-b 0.16 0.08 0.16
ca-mon-mon04-c 0.17 0.16 0.08
12 Apr 2025–11 May 2025
Average latency (ms) jp-osa-osa21-a jp-osa-osa22-a jp-osa-osa23-a
jp-osa-osa21-a 0.1 1.46 1.41
jp-osa-osa22-a 1.46 0.1 1.43
jp-osa-osa23-a 1.41 1.43 0.1
12 Apr 2025–11 May 2025
Average latency (ms) au-syd-syd01-a au-syd-syd04-a au-syd-syd05-a
au-syd-syd01-a 0.09 1.63 0.83
au-syd-syd04-a 1.63 0.09 1.8
au-syd-syd05-a 0.83 1.8 0.1
12 Apr 2025–11 May 2025
Average latency (ms) jp-tok-tok02-a jp-tok-tok04-a jp-tok-tok05-a
jp-tok-tok02-a 0.1 1.5 0.97
jp-tok-tok04-a 1.5 0.1 1.71
jp-tok-tok05-a 0.97 1.71 0.1
12 Apr 2025–11 May 2025
Average latency (ms) br-sao-sao01-a br-sao-sao04-a br-sao-sao05-a
br-sao-sao01-a 0.08 1.66 2.69
br-sao-sao04-a 1.66 0.09 1.95
br-sao-sao05-a 2.69 1.95 0.1