Cisco BGP Configuring BGP on Cisco Routers Set 1

What is the range of values from which an ISP can assign a private AS number?

The Outbound Route Filter (ORF) capability is negotiated between BGP neighbors during the BGP ____ process via the _____ message.

 

BGP table
Address Prefix AS-Path Next hop Communities Other attr.
10.0.0.0 /8 65100 65101 1.1.1.1 65101:111
... ... ... ... ... ...
IP routing table
Protocol Address Prefix Next-hop Outgoing interface BGP 10.0.0.0 /8 1.1.1.1
OSPF 1.1.1.1 /32 172.16.1.2 Ethernet 0
conn. 172.16.1.0 /24 Ethernet 0
IP routing table
Protocol Address Prefix Next-hop Outgoing
interface
BGP 10.0.0.0 /8 1.1.1.1
OSPF 1.1.1.1 /32 172.16.1.2 Ethernet 0
conn. 172.16.1.0 /24 Ethernet 0
To forward a packet to 10.0.0.0/8, the router perform the following steps:
Step 1. Search the ip routing table for a route to reach the 10.0.0.0/8 network.
Step 2. ___________________________
Step 3. Find the connected outgoing interface to reach 172.16.1.2. Step 4. Arp for the 172.16.1.2 MAC address
if it is not already in the ARP cache. Step 5. Store the 172.16.1.2 MAC address in the Fast Switching cache for
successive packets to network 10.0.0.0.
What is step 2?

Based on the following show ip bgp neighbor 10.1.1.1 output:
R1#show ip bgp neighbors 10.1.1.1
BGP neighbor is 10.1.1.1, remote AS 65103, external link BGP version 4, remote under ID 0.0.0.0
BGP state = Active
Last read 00:00:04, hold time is 180, keepalive interval is 60 seconds
Received 44 messages, 0 notifications, 0 in queue Sent 45 messages, 6 notifications, 0 in queue
Route refresh request: received 0, sent 0
Default minimum time between advertisement runs in 30 seconds
For address family: IPv4 Unicast
BGP table version 1, neighbor version 0
Index 2, Offset 0, Mask 0x4
0 accepted prefixes consume 0 bytes
Prefix advertised 0, suppressed 0, withdraw 0
Number of NLRIs in the update sent: max 0, min 0 Connections established 7; dropped 7
Last reset 00:05:18, due to BGP Notification received, peer in wrong AS
External BGP neighbor may be up to 2 hops away.
No active TCP connection
What is causing the BGP session to the 10.1.1.1 neighbor to toggle between the Idle and Active state?

Based on the following show ip bgp neighbors output from Certkiller 2, which two statements are true? (Choose two) Certkiller 2#show ip bgp neighbors BGP neighbor is 10.1.1.5, remote AS 65101, internal link Index 1, Offset 0, Mask 0x2 Route-Reflector Client BGP version 4, remote router ID 5.5.5.5 BGP state = Established, table version = 4, up for 00:01:29 Last read 00:00:29, hold time is 180, keepalive interval is 60 seconds Minimum time between advertisement runs is 5 seconds Received 13556 messages, 0 notifications, 0 in queue Sent 13454 messages, 0 notifications, 0 in queue Prefix advertised 0, suppressed 0, withdraw 0 Default weight 900 Inbound path policy configured Route map for incoming advertisement is test Connections established 31; dropped 30 Last reset 00:01:40, due to User reset 3 accepted prefixes consume 96 bytes 0 history paths consume 0 bytes 0 history paths consume 0 bytes

Which Cisco IOS command is used to view the amount of CPU resources consumed (utilization) due to running BGP processes?

Based on the following show ip bgp neighbor 10.1.1.1 output, what is the neighbor relationship?
CK1 #show ip bgp neighbor 10.1.1.1
BGP neighbor is 10.1.1.1, remote AS 65002, external link Index 2, Offset 0, Mask 0x4
BGP version 4, remote router ID 12.1.2.3
Neighbor under common administration
BGP state = Established, table version = 5, up for 00:09:15 Last read 00:00:16, hold time is 180, keepalive
interval is 60 seconds Minimum time between advertisement runs is 30 seconds Received 13 messages, 0
notifications, 0 in queue Sent 13 messages, 0 notifications, 0 in queue
Prefix advertised 1, suppressed 0, withdrawn 0
Connections established 1; dropped 0
Last reset never
1 accepted prefixes consume 32 bytes
0 history paths consume 0 bytes
External BGP neighbor may be up to 255 hops away

What is wrong with the following BGP configuration? !
interface loopback0
ip address 1.1.1.1 255.255.255.255
!
interface s0
ip address 172.16.1.2 255.255.255.0
!
interface e1
ip address 10.1.1.1 255.255.255.0
!
interface e2
ip address 10.1.2.1 255.255.255.0
!
router bgp 65101
neighbor 172.16.1.1 remote-as 65102
neighbor 3.3.3.3 remote-as 65101
neighbor 3.3.3.3 update-source loopback0
network 10.1.0.0 mask 0.0.255.255
no auto-summary
!
router eigrp 100
network 10.0.0.0
network 1.0.0.0

Which regular expression can be used to match all routes originating in the local AS?

How would you complete the following BGP configuration to allow the BGP router in AS 65111 to only accept
BGP updates from AS 65101 having 172.16 in the first 16 bits and a subnet mask of 24 bits or less? (Any other
updates from AS 65101 are denied.)
router bgp 65111
neighbor 10.1.1.1 remote-as 65101
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