tools/multiple-bgpd.sh

   1 #!/bin/bash
   2
   3 # Public domain, not copyrighted..
   4
   5 NUM=5
   6 VTYBASE=2610
   7 ASBASE=64560
   8 BGPD=/path/to/bgpd
   9 PREFIX=192.168.145.
  10 #PREFIX=3ffe:123:456::
  11 ADDRPLEN=32
  12 CONFBASE=/tmp
  13 PIDBASE=/var/run/quagga
  14 CHOWNSTR=quagga:quagga
  15
  16 for H in `seq 1 ${NUM}` ; do
  17         CONF="${CONFBASE}"/bgpd${H}.conf
  18         ADDR=${PREFIX}${H}
  19
  20         if [ ! -e "$CONF" ] ; then
  21                 # This sets up a ring of bgpd peerings
  22                 NEXT=$(( ($H % ${NUM}) + 1 ))
  23                 PREV=$(( (($H + 3) % ${NUM}) + 1 ))
  24                 NEXTADDR="${PREFIX}${NEXT}"
  25                 NEXTAS=$((${ASBASE} + $NEXT))
  26                 PREVADDR="${PREFIX}${PREV}"
  27                 PREVAS=$((${ASBASE} + $PREV))
  28
  29                 # Edit config to suit.
  30                 cat > "$CONF" <<- EOF
  31                         password whatever
  32                         service advanced-vty
  33                         !
  34                         router bgp $((64560+${H}))
  35                          bgp router-id ${ADDR}
  36                          network 10.${H}.1.0/24 pathlimit 1
  37                          network 10.${H}.2.0/24 pathlimit 2
  38                          network 10.${H}.3.0/24 pathlimit 3
  39                          neighbor default peer-group
  40                          neighbor default update-source ${ADDR}
  41                          neighbor default capability orf prefix-list both
  42                          neighbor default soft-reconfiguration inbound
  43                          neighbor ${NEXTADDR} remote-as ${NEXTAS}
  44                          neighbor ${NEXTADDR} peer-group default
  45                          neighbor ${PREVADDR} remote-as ${PREVAS}
  46                          neighbor ${PREVADDR} peer-group default
  47                         !
  48                          address-family ipv6
  49                          network 3ffe:${H}::/48
  50                          network 3ffe:${H}:1::/48 pathlimit 1
  51                          network 3ffe:${H}:2::/48 pathlimit 3
  52                          network 3ffe:${H}:3::/48 pathlimit 3
  53                          neighbor default activate
  54                          neighbor default capability orf prefix-list both
  55                          neighbor default default-originate
  56                          neighbor ${NEXTADDR} peer-group default
  57                          neighbor ${PREVADDR} peer-group default
  58                          exit-address-family
  59                         !
  60                         line vty
  61                         !
  62                         end
  63                 EOF
  64                 chown ${CHOWNSTR} "$CONF"
  65         fi
  66         # You may want to automatically add configure a local address
  67         # on a loop interface.
  68         #
  69         # Solaris: ifconfig vni${H} plumb ${ADDR}/${ADDRPLEN} up
  70         # Linux:   ip address add ${ADDR}/${ADDRPLEN} dev lo 2> /dev/null
  71         ${BGPD} -i "${PIDBASE}"/bgpd${H}.pid \
  72                 -l ${ADDR} \
  73                 -f "${CONF}" \
  74                 -P $((${VTYBASE}+${H})) \
  75                 -d
  76 done