BGP Communities
Strategic Explorations uses BGP communities to control traffic engineering and propagate route information.
Region Identifers
| Identifers |
Description |
| 41 |
Europe |
| 42 |
North America-E |
| 43 |
North America-C |
| 44 |
North America-W |
| 45 |
Central America |
| 46 |
South America-E |
| 47 |
South America-W |
| 48 |
Africa-N (above Sahara) |
| 49 |
Africa-S (below Sahara) |
| 50 |
Asia-S (IN,PK,BD) |
| 51 |
Asia-SE (TH,SG,PH,ID,MY) |
| 52 |
Asia-E (JP,CN,KR,TW,HK) |
| 53 |
Pacific&Oceania (AU,NZ,FJ) |
| 54 |
Antarctica |
| 55 |
Asia-N (RU) |
| 56 |
Asia-W (IR,TR,UAE) |
| 57 |
Central Asia (AF,UZ,KZ) |
666: Blackhole (RTBH)
This community is used to drop traffic to a specific IP under DDoS attack.
| Community |
Description |
| (OURASN, 666, 0) |
Discard traffic to this prefix (Blackhole) |
These communities can be set by peers to influence our routing decisions.
2: Local Preference Control
| Community |
Description |
| (OURASN, 2, 1) |
Set Local Preference to 100 (default value) |
| (OURASN, 2, 2) |
Set Local Preference to 200 |
| (OURASN, 2, 3) |
Set Local Preference to 0 |
5: Prepend Control
| Community |
Description |
| (OURASN, 5, 1) |
Path Prepend x1 |
| (OURASN, 5, 2) |
Path Prepend x2 |
| (OURASN, 5, 3) |
Path Prepend x3 |
| (OURASN, 5, 4) |
Path Prepend x4 |
| (OURASN, 5, 5) |
Path Prepend x5 |
4: Peer Type Indicator
| Community |
Description |
| (OURASN, 4, 10) |
Peer Type: Full Table |
| (OURASN, 4, 20) |
Peer Type: Transit |
| (OURASN, 4, 21) |
Peer Type: Private Transit |
| (OURASN, 4, 30) |
Peer Type: Downstream |
| (OURASN, 4, 40) |
Peer Type: Peer |
| (OURASN, 4, 41) |
Peer Type: Private Peer |
6: Route Origin Region Indicator
DN42 region communities are auto translated when importing to our network.
| Community |
Description |
| (OURASN, 6, {REGION}) |
Origin Region: REGION |
7: Route Import Region Indicator
| Community |
Description |
| (OURASN, 7, {REGION}) |
Import Region: REGION |
11/12/13: Regional Prepend Control
| Community |
Description |
| (OURASN, 11, {REGION}) |
Prepend x1 at REGION |
| (OURASN, 12, {REGION}) |
Prepend x2 at REGION |
| (OURASN, 13, {REGION}) |
Prepend x3 at REGION |
20: RPKI Check Result
| Community |
Description |
| (OURASN, 20, 1) |
RPKI Check: VALID |
| (OURASN, 20, 2) |
RPKI Check: INVALID |
| (OURASN, 20, 3) |
RPKI Check: UNKNOWN |
| (OURASN, 20, 4) |
RPKI Check: INVALID (Flapping Route) |