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来自「linux 路由软件 可支持RIP OSPF BGP等」· 代码 · 共 2,424 行 · 第 1/5 页

the present old LSA in retransmit list is not more recent than the new
one.

** In states Loading and Full the slave must resend its last Database
Description packet in response to duplicate Database Description
packets received from the master.  For this reason the slave must wait
RouterDeadInterval seconds before freeing the last Database
Description packet. Reception of a Database Description packet from
the master after this interval will generate a SeqNumberMismatch
neighbor event. RFC2328 Section 10.8

** Virtual link can not configured in stub area.

** Clear a ls_upd_queue queue of the interface when interface goes
down.

** "no router ospf" unregister redistribution requests from zebra.

** New command for virtual-link configuration is added.

  "area A.B.C.D virtual-link A.B.C.D"
  "area A.B.C.D virtual-link A.B.C.D hello-interval <1-65535> retransmit-interval <3-65535> transmit-delay <1-65535> dead-interval <1-65535>"
  "area A.B.C.D virtual-link A.B.C.D hello-interval <1-65535> retransmit-interval <3-65535> transmit-delay <1-65535> dead-interval <1-65535> authentication-key AUTH_KEY"
  "area A.B.C.D virtual-link A.B.C.D authentication-key AUTH_KEY"
  "area A.B.C.D virtual-link A.B.C.D hello-interval <1-65535> retransmit-interval <3-65535> transmit-delay <1-65535> dead-interval <1-65535> message-digest-key <1-255> md5 KEY"
  "area A.B.C.D virtual-link A.B.C.D message-digest-key <1-255> md5 KEY"

** Clear cryptographic sequence number when neighbor status is changed
to NSM down.

** Make Summary LSA's origination and refreshment as same as other
type of LSA.

** New OSPF pakcet read method. Now maximum packet length may be 65535
bytes (maximum IP packet length).

** Checking the age of the found LSA and if the LSA is MAXAGE we
should call refresh instead of originate.

** Install multipath information to zebra.

** Fix socket descriptor leak when system call failed.

* Changes in ospf6d

** Whole functionality has been rewritten as new code. new command
"show ipv6 ospf6 spf node", "show ipv6 ospf6 spf tree", "show ipv6
ospf6 spf table" has been added.

** Change to do not send garbage route whose nexthop is not linklocal
address.

** "redistribute ospf6" was generated in "router ospf6" in config
file. It is fixed.

** LSDB sync bug is fixed.

** Fix bug of using unavailable route.

* Changes in vtysh

** route-map and access-list configuration is merged into one
configuration.

** /usr/local/etc/Zebra.conf is integrated configuration file.  "write
memory" in vtysh will write whole configuration to this file.

** When -b option is specified to vtysh, vtysh read
/usr/local/etc/Zebra.conf file then pass the confuguration to proper
protocol daemon.  So make all protocol daemon's configuration file
empty then invoke all daemon.  After that vtysh -b will setup saved
configuration.

zebrastart.sh
=============
/usr/local/sbin/zebra -d
/usr/local/sbin/ripd -d
/usr/local/sbin/ospfd -d
/usr/local/sbin/bgpd -d
/usr/local/bin/vtysh -b

* Changes in zebra-0.89

* Changes in lib

** distribute-list can set all interface's access-list and prefix-list
configuration.

* Changes in ripd

** "show ip protocols" display proper distribute-list settings and
distance settings.

** When metric infinity route received withdraw the route from kernel
immediately it used to be wait garbage collection.

** key-chain can be used for simple password authentication.

** RIPv2 MIB getnext interface bug is fixed.

* Changes in vtysh

** --with-libpam enable PAM authentication for vtysh.

** Now vtysh read vtysh.conf.  This file should be
${SYSCONFDIR}/etc/vtysh.conf for security reason.  Usually it is
/usr/local/etc/vtysh.conf.

** "username WORD nopassword" command is added to vtysh.

* Chagees in ospfd

** NBMA interface support is added.

** OSPF area is sorted by area ID.

** New implementation of OSPF refreesh.

** OSPF-MIB read function is partly added.

* Changes in bgpd

** When the peering is done by ebgp-multihop, nexthop is looked up
like IBGP routes.

** "show ip mbgp" commands are changed to "show ip bgp ipv4
multicast".

** New terminal commands are added.
  "show ip bgp ipv4 (unicast|multicast) filter-list WORD"
  "show ip bgp ipv4 (unicast|multicast) community"
  "show ip bgp ipv4 (unicast|multicast) community-list WORD"
  "show ip bgp ipv4 (unicast|multicast) community-list WORD exact-match"

** MBGP soft-reconfiguration command is added.
  "clear ip bgp x.x.x.x ipv4 (unicast|multicast) in"
  "clear ip bgp x.x.x.x ipv4 (unicast|multicast) out"
  "clear ip bgp x.x.x.x ipv4 (unicast|multicast) soft"
  "clear ip bgp <1-65535> ipv4 (unicast|multicast) in"
  "clear ip bgp <1-65535> ipv4 (unicast|multicast) out"
  "clear ip bgp <1-65535> ipv4 (unicast|multicast) soft"
  "clear ip bgp * ipv4 (unicast|multicast) in"
  "clear ip bgp * ipv4 (unicast|multicast) out"
  "clear ip bgp * ipv4 (unicast|multicast) soft"

** MED related commands are added.
  "bgp deterministic-med"
  "bgp bestpath med confed"
  "bgp bestpath med missing-as-worst"

** "bgp default local-preference" command is added.

** BGP confederation peer's routes are passed to zebra like IBGP route.

** Community match command is added.
  "show ip bgp community <val>"
  "show ip bgp community <val> exact-match"

** EBGP multihop route treatment bug is fixed.  Now nexthop is
resolved by IGP routes.

** Some commands are added to show routes by filter-list and community
value.
  "show ip bgp ipv4 (unicast|multicast) filter-list WORD"
  "show ip bgp ipv4 (unicast|multicast) community"
  "show ip bgp ipv4 (unicast|multicast) community-list WORD"
  "show ip bgp ipv4 (unicast|multicast) community-list WORD exact-match"

* Changes in zebra

** zebra read interface's address information using getifaddrs() when
it is available.

** Reflect IPv6 interface's address change to protocol daemons.

* Changes in zebra-0.88

* Changes in lib

** "exact-match" option is added to "access-list" and "ipv6
access-list" command.  If this option is specified, the prefix and
prefix length is compared as exact match mode.

* Changes in zebra

** New Zebra message ZEBRA_REDISTRIBUTE_DEFAULT_ADD and
ZEBRA_REDISTRIBUTE_DEFAULT_DELTE are added.

** Default administrative distance value is changed.

            Old         New
------------------------------------------
system      10           0
kernel      20           0
connected   30           0
static      40           1
rip         50         120
ripng       50         120
ospf        60         110
ospf6       49         110
bgp         70         200(iBGP)  20(eBGP)
------------------------------------------

** Distance value can be passed from protocol daemon to zebra.

** "show ip route" shows [metric/distance] value pair.

** Zebra Protocol is changed to support multi-path route and distance
value.

* Changes in ospfd

** "default-information originate [always]" command is added.

** "default-metric <0-16777214>" command is added.

** "show ip ospf database" command is integrated.  LS-ID and AdvRouter can
   be specifed.  The commands are

   show ip ospf database TYPE LS-ID
   show ip ospf database TYPE LS-ID ADV-ROUTER
   show ip ospf database TYPE LS-ID self-originate
   show ip ospf database TYPE self-originate

** route-map support for `redistribute' command are added.
   Supported `match' statements are

   match interface
   match ip address
   match next-hop

   Supported `set' statements are

   set metric
   set metric-type

** Pass OSPF metric value to zebra daemon.

* Changes in ripd

** When specified route-map does not exist, it means all deny.

** "default-metric <1-16>" command is added.

** "offset-list ACCESS-LIST-NAME <0-16>" and "offset-list
ACCESS-LIST-NAME <0-16> IFNAME" commands are added.

** "redistribute ROUTE-TYPE metric <0-16>" command is added.

** "default-information originate" command is added.

** "ip split-horizon" and "no ip split-horizon" is added to interface
configuration.

** "no router rip" command is added.

** "ip rip authentication mode (md5|text)" is added to interface
configuration.

** "ip rip authentication key-chain KEY-CHAIN" is added to interface
configuration.

** Pass RIP metric value to zebra daemon.

** Distance manipulation functions are added.

* Changes in bgpd

** Fix bug of next hop treatment for MPLS-VPN route exchange.

** BGP peer MIB is updated.

** Aggregated route has origin IGP, atomic-aggregate and proper
aggregator attribute.

** Suppressed route now installed into BGP table.  It is only
suppressed from announcement.

** BGP router-id is properly set after "no router bgp ASN" and "router
bgp ASN".

** Add check for nexthop is accessible or not for IBGP routes.

** Add cehck for nexthop is on connected or not for EBGP routes.

** "dump bgp route" command is changed to "dump bgp route-mrt" for
generating MRT compatible dump output.

** Soft reconfiguration inbound and outbound is supported.

** Route refresh feature is supported.

* Changes in vtysh

** VTY shell is now included into the distribution.

* Changes in zebra-0.87

* Changes in lib

** "show startup-config" command is added.

** "show history" command is added.

** Memory statistics command is changed.  New command

   show memory all
   show memory lib
   show memory rip
   show memory ospf
   show memory bgp

are added.

** Filters can be removed only specify it's name.  New command

   no access-list NAME
   no ip community-list NAME
   no ip as-path access-list NAME
   no route-map NAME

are added.

** At any node, user can view/save user configuration.

   write terminal
   write file
   wirte memory

are added to every node in default.

** LCD completion is added.  For example both "ip" and "ipv6" command
are exist, "i" then press TAB will be expanded to "ip".

* Changes in bgpd

** "show ip bgp" family shows total number of prefixes.

** "no bgp default ipv4-unicast" command is added.

** Extended Communities support is added.

** "no neighbor PEER send-community extended" command is added.

** MPLS-VPN PE-RR support is added.

 New address family vpnv4 unicast is introduced.

  !
  address-family vpnv4 unicast
   neighobr PEER activate
   network A.B.C.D rd RD tag TAG
  exit-address-family
  !

 To make it route-reflector, please configure it under normal router
bgp ASN.

  !
  router bgp 7675
   no bgp default ipv4-unicast
   bgp router-id 10.0.0.100
   bgp cluster-id 10.0.0.100
   neighbor 10.0.0.1 remote-as 65535
   neighbor 10.0.0.1 route-reflector-client
   neighbor 10.0.0.2 remote-as 65535
   neighbor 10.0.0.2 route-reflector-client
   neighbor 10.0.0.3 remote-as 65535
   neighbor 10.0.0.3 route-reflector-client
  !
  address-family vpnv4 unicast
   neighbor 10.0.0.1 activate
   neighbor 10.0.0.2 activate
   neighbor 10.0.0.3 activate
  exit-address-family
  !

* Changes in ospfd

** Many many bugs are fixed.

* Changes in ripd

** Better interface up/down event handle.

* Changes in zebra

** Better interface up/down event handle.

* Changes in zebra-0.86

* Changes in lib

** Fix bug of exec-timeout command which may cause crush.

** Multiple same policy for "access-list", "ip prefix-list, "as-path
access-list", "ip community-list" is not duplicated.

** It used to be "ip prefix-list A.B.C.D/M" match routes which mask >=
M.  Now default behavior is exact match so it only match routes which
mask == M.

* Changes in bgpd

** "match ip address prefix-list" is added to route-map.

** A route without local preference is evaluated as 100 local preference.

** Select smaller router-id route when other values are same.

** Compare MED only both routes comes from same neighboring AS.

** "bgp always-compare-med" command is added.

** Now MED value is passed to IBGP peer.

** When neighbor's filter is configured with non-existent access-list,
as-path access-list, ip prefix-list, route-map.  The behavior is
changed from all permit to all deny.

* Changes in ospfd

** Fix bug of external route tag byte order.

** OSPF Neighbor deletion bug which cause crush is fixed.

** Some route calculation bug are fixed.

** Add sanity check with router	routing table.

** Fix bug of memory leak about linklist.

** Fix bug of 1-WayReceived in NSM.

** Take care of BIGENDIAN architecture.

** Fix bug of NSM state flapping between ExStart and Exchange.

** Fix bug of Network-LSA originated in stub network.

** Fix bug of MS flag unset.

** Add to schedule router_lsa origination when the interface cost
changes.

** Increment LS age by configured interface transmit_delay.

** distribute-list is reimplemented.

** Fix bug of refresh never occurs.

** Fix bug of summary-LSAs reorigination.  Correctly copy
OSPF_LSA_APPROVED flag to new LSA. when summary-LSA is reoriginatd.

** Fix bug of re-origination when a neighbor disappears.

** Fix bug of segmentation fault with DD retransmission.

** Fix network-LSA re-origination problem.

** Fix problem of remaining withdrawn routes on zebra.

* Changes in ripd

** Do not leave from multicast group when interface goes down bug is
fixed.

* Changes in zebra

** Remove client structure when client dies.

** Take care static route when interface goes up/down.

* Changes in zebra-0.85

* Changes in bgpd

** "transparent-nexthop" and "transparenet-as" commands are added.

** Route reflector's originator-id bug is fixed.

* Changes in ospfd

** Fix bug of OSPF LSA memory leak.