New Template: Cisco IOS show ip bgp neighbor

Add support to parse output from `show ip bgp neighbor`.

A lot more output could be retrieved from this command, I only took what
I needed for now.

templates/cisco_ios_show_ip_bgp_neighbor.textfsm

@@ -0,0 +1,36 @@
+Value NEIGHBOR_IP (\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})
+Value REMOTE_AS (\d+)
+Value PEER_GROUP (\w+)
+Value REMOTE_ROUTER_ID (\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})
+Value BGP_STATE (\w+)
+Value LOCAL_HOST (\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})
+Value LOCAL_PORT (\d+)
+Value FOREIGN_HOST (\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})
+Value FOREIGN_PORT (\d+)
+
+Start
+  # Capture first line, which shows the BGP neighor and remote AS number
+  ^BGP\s+neighbor\s+is\s+${NEIGHBOR_IP},\s+remote\s+AS\s+${REMOTE_AS} -> Bgp_neighbor
+
+Bgp_neighbor
+  # Capture BGP peer group
+  # Example: 'Member of peer-group RR_SERVERS for session parameters'
+  ^\s*Member\s+of\s+peer-group\s+${PEER_GROUP}
+  # 
+  # Capture remote router ID
+  # Example: ' BGP state = Established, up for 7w3d'
+  ^.+remote\s+router\s+ID\s+${REMOTE_ROUTER_ID}
+  #
+  # Capture BGP state
+  # Example: ' BGP state = Established, up for 7w3d'
+  ^\s+BGP\s+state\s+=\s+${BGP_STATE}
+  #
+  #
+  # Match local host and port
+  # Example: 'Local host: 10.10.255.13, Local port: 39443'
+  ^Local\s+host:\s+${LOCAL_HOST},\s+Local\s+port:\s+${LOCAL_PORT}
+  # 
+  # Match local host and port
+  # Example: 'Local host: 10.10.255.13, Local port: 39443'
+  ^Foreign\s+host:\s+${FOREIGN_HOST},\s+Foreign\s+port:\s+${FOREIGN_PORT} -> Next.Record Start
+  #^.+ -> Error

templates/index

@@ -158,6 +158,7 @@ cisco_ios_show_mac-address-table.textfsm, .*, cisco_ios, sh[[ow]] m[[ac-address-
 cisco_ios_show_ip_ospf_database.textfsm, .*, cisco_ios, sh[[ow]] ip ospf data[[base]]
 cisco_ios_show_ip_ospf_neighbor.textfsm, .*, cisco_ios, sh[[ow]] ip ospf nei[[ghbor]]
 cisco_ios_show_ip_access-lists.textfsm, .*, cisco_ios, sh[[ow]] ip acce[[ss-lists]]
+cisco_ios_show_ip_bgp_neighbor.textfsm, .*, cisco_ios, sh[[ow]] ip bgp nei[[ghbor]]
 cisco_ios_show_power_available.textfsm,  .*, cisco_ios, sh[[ow]] pow[[er]] a[[vailable]]
 cisco_ios_show_ip_bgp_summary.textfsm, .*, cisco_ios, sh[[ow]] ip bgp sum[[mary]]
 cisco_ios_show_ip_prefix-list.textfsm, .*, cisco_ios, sh[[ow]] ip pre[[fix-list]]

tests/cisco_ios/show_ip_bgp_neighbor/cisco_ios_show_ip_bgp_neighbor.raw

@@ -0,0 +1,97 @@
+BGP neighbor is 20.30.255.14,  remote AS 1255, internal link
+ Member of peer-group RR_SERVERS for session parameters
+  BGP version 4, remote router ID 20.40.1.1
+  BGP state = Established, up for 7w3d
+  Last read 00:00:24, last write 00:00:22, hold time is 180, keepalive interval is 60 seconds
+  Neighbor sessions:
+    1 active, is not multisession capable (disabled)
+  Neighbor capabilities:
+    Route refresh: advertised and received(new)
+    Four-octets ASN Capability: advertised and received
+    Address family IPv4 Unicast: advertised and received
+    Multisession Capability:
+  Message statistics:
+    InQ depth is 0
+    OutQ depth is 0
+
+                         Sent       Rcvd
+    Opens:                  1          1
+    Notifications:          0          0
+    Updates:                1         94
+    Keepalives:         83823      84638
+    Route Refresh:          0          0
+    Total:              83825      84733
+  Default minimum time between advertisement runs is 0 seconds
+
+ For address family: IPv4 Unicast
+  Session: 20.30.255.14
+  BGP table version 270, neighbor version 270/0
+  Output queue size : 0
+  Index 1, Advertise bit 0
+  1 update-group member
+  RR_SERVERS peer-group member
+  Inbound soft reconfiguration allowed
+  Slow-peer detection is disabled
+  Slow-peer split-update-group dynamic is disabled
+                                 Sent       Rcvd
+  Prefix activity:               ----       ----
+    Prefixes Current:               0        113 (Consumes 6328 bytes)
+    Prefixes Total:                 0        217
+    Implicit Withdraw:              0         52
+    Explicit Withdraw:              0         52
+    Used as bestpath:             n/a        113
+    Used as multipath:            n/a          0
+
+                                   Outbound    Inbound
+  Local Policy Denied Prefixes:    --------    -------
+    Bestpath from this peer:            217        n/a
+    Invalid Path:                        52        n/a
+    Total:                              269          0
+  Number of NLRIs in the update sent: max 0, min 0
+  Last detected as dynamic slow peer: never
+  Dynamic slow peer recovered: never
+
+  Address tracking is enabled, the RIB does have a route to 20.30.255.14
+  Connections established 1; dropped 0
+  Last reset never
+  Transport(tcp) path-mtu-discovery is enabled
+  Graceful-Restart is disabled
+Connection state is ESTAB, I/O status: 1, unread input bytes: 0
+Connection is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 255
+Local host: 20.30.255.13, Local port: 39443
+Foreign host: 20.30.255.14, Foreign port: 179
+Connection tableid (VRF): 0
+Maximum output segment queue size: 50
+
+Enqueued packets for retransmit: 0, input: 0  mis-ordered: 0 (0 bytes)
+
+Event Timers (current time is 0x1106B0BD8):
+Timer          Starts    Wakeups            Next
+Retrans         83827          1             0x0
+TimeWait            0          0             0x0
+AckHold         84719      83274             0x0
+SendWnd             0          0             0x0
+KeepAlive           0          0             0x0
+GiveUp              0          0             0x0
+PmtuAger            1          1             0x0
+DeadWait            0          0             0x0
+Linger              0          0             0x0
+ProcessQ            0          0             0x0
+
+iss: 3730243128  snduna: 3731835842  sndnxt: 3731835842
+irs: 2485586108  rcvnxt: 2487200336
+
+sndwnd:  33561  scale:      0  maxrcvwnd:  16384
+rcvwnd:  16099  scale:      0  delrcvwnd:    285
+
+SRTT: 1000 ms, RTTO: 1003 ms, RTV: 3 ms, KRTT: 0 ms
+minRTT: 0 ms, maxRTT: 1000 ms, ACK hold: 200 ms
+Status Flags: active open
+Option Flags: nagle, path mtu capable, SACK option permitted
+IP Precedence value : 6
+
+Datagrams (max data segment is 1460 bytes):
+Rcvd: 168543 (out of order: 0), with data: 84718, total data bytes:41614227
+Sent: 168204 (retransmit: 1, fastretransmit: 0, partialack: 0, Second Congestion: 0), with data: 83825, total data bytes: 1592713
+ Packets received in fast path: 0, fast processed: 0, slow path: 0
+ fast lock acquisition failures: 0, slow path: 0

tests/cisco_ios/show_ip_bgp_neighbor/cisco_ios_show_ip_bgp_neighbor.yml

@@ -0,0 +1,11 @@
+---
+parsed_sample:
+  - neighbor_ip: "20.30.255.14"
+    remote_as: "1255"
+    peer_group: "RR_SERVERS"
+    remote_router_id: "20.40.1.1"
+    bgp_state: "Established"
+    local_host: "20.30.255.13"
+    local_port: "39443"
+    foreign_host: "20.30.255.14"
+    foreign_port: "179"