Aggregate (5-minute sampling) Graphs | Aggregate (1-minute sampling) Graphs | Broadcast, Unknown-Unicast, and Multicast (BUM) Graphs


Broadcast, Unknown-Unicast, and Multicast (BUM) traffic graphs for the SIX's main MTU 1500 peering VLAN are presented here.

This page gives insight into what is happening on the main peering fabric. A sort of "weather report" that shows the effects of routers coming and going along with other unexpected events. Misconfigurations may also be evident here.

With over 400 active routers, we work diligently to minimize BUM traffic since this traffic causes an unnecessary load on all routers, masks other problems, and can overload smaller circuits. We employ multiple techniques, including the requirement of 4-hour ARP/ND timer cache timeouts as able, sponging of the IP assignments of participants on hiatus or departed (AMS-IX's "arpsponge" software for IPv4, manually for IPv6), static MAC address tables to prevent flooding of packets, and the requirement that the SIX fabric not be accessible via participant networks so as to minimize remote scans which result in BUM traffic.

We routinely inform participants of ACL misconfigurations that result in excess BUM traffic.

Broadcasts are commonly indicative of IPv4 ARP requests while multicasts are commonly indicative of IPv6 Neighbor Solicitations.

The charts on this page are based on a 1 minute sampling rate.

Hourly | Daily | Weekly | Monthly | Yearly | Multi-Year

Hour scale:

6-Hour Standard MTU 1500 Peering VLAN BUM Traffic

6-Hour Standard MTU 1500 Peering VLAN Broadcasts

6-Hour Standard MTU 1500 Peering VLAN Multicasts

6-Hour Standard MTU 1500 Peering VLAN Unknown Unicasts


Day scale:

Day Standard MTU 1500 Peering VLAN BUM Traffic

Day Standard MTU 1500 Peering VLAN Broadcasts

Day Standard MTU 1500 Peering VLAN Multicasts

Day Standard MTU 1500 Peering VLAN Unknown Unicasts


Week scale:

Week Standard MTU 1500 Peering VLAN BUM Traffic

Week Standard MTU 1500 Peering VLAN Broadcasts

Week Standard MTU 1500 Peering VLAN Multicasts

Week Standard MTU 1500 Peering VLAN Unknown Unicasts


Month scale:

Month Standard MTU 1500 Peering VLAN BUM Traffic

Month Standard MTU 1500 Peering VLAN Broadcasts

Month Standard MTU 1500 Peering VLAN Multicasts

Month Standard MTU 1500 Peering VLAN Unknown Unicasts


Year scale:

Year Standard MTU 1500 Peering VLAN BUM Traffic

Year Standard MTU 1500 Peering VLAN Broadcasts

Year Standard MTU 1500 Peering VLAN Multicasts

Year Standard MTU 1500 Peering VLAN Unknown Unicasts


Multi-year scale:

Multi-year Standard MTU 1500 Peering VLAN BUM Traffic

Multi-year Standard MTU 1500 Peering VLAN Broadcasts

Multi-year Standard MTU 1500 Peering VLAN Multicasts

Multi-year Standard MTU 1500 Peering VLAN Unknown Unicasts

 


Questions welcome at info_a_t_seattleix.net.