#2025/11/03 15:02:44<br>
#built on volo.uwsys.net<br>
<a href="/cgi-bin/CommunityDecoder.fcgi">CommunityDecoder</a>, 
<a href="https://kb.wisc.edu/uwsysnet/page.php?id=41959">KB</a></br>
<h1>local communities</h1>
<table border=1><tr><th>Name</th><th>Community</th><th>Use</th></tr>
<tr><td>uwsysnet_PaidTransit</td><td>3128:650</td><td>uwsys.net paid transit routes</td></tr>
<tr><td>uwsysnet_blackhole</td><td>3128:911</td><td>blackhole this route in AS3128 and upstreams</td></tr>
<tr><td>uwsysnet_blackhole_internet</td><td>3128:912</td><td>blackhole this route in upstreams but NOT AS3128</td></tr>
<tr><td>uwsysnet_blackhole_ext_ip</td><td>3128:913</td><td>blackhole this src IP in AS3128 core</td></tr>
<tr><td>uwsysnet_blackhole_BGPCust</td><td>3128:914</td><td>blackhole routes from BGP customers that originate their own IP space</td></tr>
<tr><td>uwsysnet_flowspec-all</td><td>3128:920</td><td>distribute flowspec rule to all iBGP clients</td></tr>
<tr><td>uwsysnet_BGPCust-LPlower</td><td>3128:1980</td><td>uwsys.net local preference will be 1980 [default is 2000]</td></tr>
<tr><td>uwsysnet_BGPCust-LPlow</td><td>3128:1990</td><td>uwsys.net local preference will be 1990 [default is 2000]</td></tr>
<tr><td>uwsysnet_Cust</td><td>3128:2000</td><td>uwsys.net connector</td></tr>
<tr><td>uwsysnet_BGPCust-multihop</td><td>3128:2005</td><td>uwsys.net member multihop session</td></tr>
<tr><td>uwsysnet_BGPCust-LPhigh</td><td>3128:2010</td><td>uwsys.net local preference will be 2010 [default is 2000]</td></tr>
<tr><td>uwsysnet_BGPCust-LPhigher</td><td>3128:2020</td><td>uwsys.net local preference will be 2020 [default is 2000]</td></tr>
<tr><td>uwsysnet_infrastructure</td><td>3128:2100</td><td>uwsys.net infrastructure routes</td></tr>
<tr><td>uwsysnet_ASBR_this_device</td><td>3128:3142</td><td>term required in techlab to leak routes into the lab ciena OSC network</td></tr>
<tr><td>uwsysnet_ASBR_this_device</td><td>3128:3143</td><td>term required in techlab to leak routes into the lab ciena OSC network</td></tr>
<tr><td>uwsysnet_transit_telia</td><td>3128:50198</td><td>uwsysnet_transit_telia</td></tr>
<tr><td>uwsysnet_peer_internet2</td><td>3128:50297</td><td>uwsysnet_peer_internet2</td></tr>
<tr><td>uwsysnet_peer_trcps</td><td>3128:50393</td><td>uwsysnet_peer_trcps</td></tr>
<tr><td>uwsysnet_peer_madix</td><td>3128:50394</td><td>uwsysnet_peer_madix</td></tr>
<tr><td>uwsysnet_internal_dns</td><td>3128:50590</td><td>uwsysnet_internal_dns</td></tr>
<tr><td>uwsysnet_internal_lab</td><td>3128:50591</td><td>uwsysnet_internal_lab</td></tr>
<tr><td>uwsysnet_internal_netflow</td><td>3128:50592</td><td>uwsysnet_internal_netflow</td></tr>
<tr><td>uwsysnet_rtbh_uwwhitewater</td><td>3128:50601</td><td>uwsysnet_rtbh_uwwhitewater</td></tr>
<tr><td>uwsysnet_rtbh_uwplatteville</td><td>3128:50602</td><td>uwsysnet_rtbh_uwplatteville</td></tr>
<tr><td>uwsysnet_rtbh_UTRS</td><td>3128:50689</td><td>uwsysnet_rtbh_UTRS</td></tr>
<tr><td>uwsysnet_no-small-prefixes</td><td>3128:60000</td><td>route denied due to small prefix</td></tr>
<tr><td>uwsysnet_no-transit-subnets</td><td>3128:60001</td><td>route denied due to transit subnet</td></tr>
<tr><td>uwsysnet_no-large-prefixes</td><td>3128:60002</td><td>route denied due to large prefix</td></tr>
<tr><td>uwsysnet_no-private-asns</td><td>3128:60003</td><td>route denied due to private ASN</td></tr>
<tr><td>uwsysnet_origin_static</td><td>3128:60100</td><td>uwsysnet_origin_static</td></tr>
<tr><td>uwsysnet_origin_direct</td><td>3128:60101</td><td>uwsysnet_origin_direct</td></tr>
<tr><td>uwsysnet_origin_aggregate</td><td>3128:60102</td><td>uwsysnet_origin_aggregate</td></tr>
</table><hr><h1>external communities</h1>
<table border=1><tr><th>Name</th><th>Community</th><th>Use</th></tr>
<tr><td>wnTransitNone</td><td>2381:1010</td><td>WiscNet will not advertise to their transit peers</td></tr>
<tr><td>wnLPLow</td><td>2381:8780</td><td>Set WiscNet local pref to 90</td></tr>
<tr><td>wnLPHigh</td><td>2381:8820</td><td>Set WiscNet local pref to 110</td></tr>
<tr><td>CUST-NOEXP-PEER-AS11164</td><td>65000:11164</td><td>WiscIT Incident 6493549: return traffic with 208.72.48.0/24 borked</td></tr>
<tr><td>Block announcement to peer</td><td>65000:$peerAS</td><td>Block announcement to peer</td></tr>
<tr><td>Prepend 1 time to peer</td><td>65001:$peerAS</td><td>Prepend 1 time to peer</td></tr>
<tr><td>Prepend 2 time to peer</td><td>65002:$peerAS</td><td>Prepend 2 time to peer</td></tr>
<tr><td>Prepend 3 time to peer</td><td>65003:$peerAS</td><td>Prepend 3 time to peer</td></tr>
<tr><td>no-export</td><td>no-export</td><td>BGP no-export</td></tr>
</table><hr>