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wk5-ex2.py
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##### Python Shell - experimenting with dictionary of dictionaries #####
# Initialize network_devices to be a blank dictionary
# >>> network_devices = {}
# Assign the key 'R1' to network_devices using a value of a blank dictionary (in other words, I am adding a key:value pair to network_devices where the key is 'R1' and the value is {} )
# >>> network_devices['R1'] = {}
# Look at network_devices at this point
# >>> network_devices
# {'R1': {}}
# Add the 'ip' and 'vendor' fields to the inner dictionary
# >>> network_devices['R1']['ip'] = '10.1.1.1'
# >>> network_devices['R1']['vendor'] = 'Cisco'
# >>> network_devices
# {'R1': {'ip': '10.1.1.1', 'vendor': 'Cisco'}}
##### Python Shell - experimenting end #####
##### Start of the cdp info - might be better as external file
sw1_show_cdp_neighbors = '''
SW1>show cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone
Device ID Local Intrfce Holdtme Capability Platform Port ID
R1 Fas 0/11 153 R S I 881 Fas 1
R2 Fas 0/12 123 R S I 881 Fas 1
R3 Fas 0/13 129 R S I 881 Fas 1
R4 Fas 0/14 173 R S I 881 Fas 1
R5 Fas 0/15 144 R S I 881 Fas 1
'''
sw1_show_cdp_neighbors_detail = '''
SW1> show cdp neighbors detail
--------------------------
Device ID: R1
Entry address(es):
IP address: 10.1.1.1
Platform: Cisco 881, Capabilities: Router Switch IGMP
Interface: FastEthernet0/11, Port ID (outgoing port): FastEthernet1
Holdtime: 153 sec
Version :
Cisco IOS Software, C880 Software (C880DATA-UNIVERSALK9-M), Version 15.0(1)M4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Fri 29-Oct-10 00:02 by prod_rel_team
advertisement version: 2
VTP Management Domain: ''
Native VLAN: 1
Duplex: full
Management address(es):
--------------------------
Device ID: R2
Entry address(es):
IP address: 10.1.1.2
Platform: Cisco 881, Capabilities: Router Switch IGMP
Interface: FastEthernet0/12, Port ID (outgoing port): FastEthernet1
Holdtime: 123 sec
Version :
Cisco IOS Software, C880 Software (C880DATA-UNIVERSALK9-M), Version 15.0(1)M4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Fri 29-Oct-10 00:02 by prod_rel_team
advertisement version: 2
VTP Management Domain: ''
Native VLAN: 1
Duplex: full
Management address(es):
--------------------------
Device ID: R3
Entry address(es):
IP address: 10.1.1.3
Platform: Cisco 881, Capabilities: Router Switch IGMP
Interface: FastEthernet0/13, Port ID (outgoing port): FastEthernet1
Holdtime: 129 sec
Version :
Cisco IOS Software, C880 Software (C880DATA-UNIVERSALK9-M), Version 15.0(1)M4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Fri 29-Oct-10 00:02 by prod_rel_team
advertisement version: 2
VTP Management Domain: ''
Native VLAN: 1
Duplex: full
Management address(es):
--------------------------
Device ID: R4
Entry address(es):
IP address: 10.1.1.4
Platform: Cisco 881, Capabilities: Router Switch IGMP
Interface: FastEthernet0/14, Port ID (outgoing port): FastEthernet1
Holdtime: 173 sec
Version :
Cisco IOS Software, C880 Software (C880DATA-UNIVERSALK9-M), Version 15.0(1)M4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Fri 29-Oct-10 00:02 by prod_rel_team
advertisement version: 2
VTP Management Domain: ''
Native VLAN: 1
Duplex: full
Management address(es):
--------------------------
Device ID: R5
Entry address(es):
IP address: 10.1.1.5
Platform: Cisco 881, Capabilities: Router Switch IGMP
Interface: FastEthernet0/15, Port ID (outgoing port): FastEthernet1
Holdtime: 144 sec
Version :
Cisco IOS Software, C880 Software (C880DATA-UNIVERSALK9-M), Version 15.0(1)M4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Fri 29-Oct-10 00:02 by prod_rel_team
advertisement version: 2
VTP Management Domain: ''
Native VLAN: 1
Duplex: full
Management address(es):
'''
r1_show_cdp_neighbors = '''
R1>show cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
SW1 Fas 1 150 S I WS-C2950- Fas 0/11
'''
r1_show_cdp_neighbors_detail = '''
R1>show cdp neighbors detail
-------------------------
Device ID: SW1
Entry address(es):
IP address: 10.1.1.22
Platform: cisco WS-C2950-24, Capabilities: Switch IGMP
Interface: FastEthernet1, Port ID (outgoing port): FastEthernet0/11
Holdtime : 145 sec
Version :
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA8a, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2006 by cisco Systems, Inc.
Compiled Fri 28-Jul-06 15:16 by weiliu
advertisement version: 2
Protocol Hello: OUI=0x00000C, Protocol ID=0x0112; payload len=27, value=00000000FFFFFFFF010221FF0000000000000019E845CE80FF0000
VTP Management Domain: ''
Native VLAN: 1
Duplex: full
'''
r2_show_cdp_neighbors = '''
R2>show cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
SW1 Fas 1 150 S I WS-C2950- Fas 0/12
'''
r2_show_cdp_neighbors_detail = '''
R2>show cdp neighbors detail
-------------------------
Device ID: SW1
Entry address(es):
IP address: 10.1.1.22
Platform: cisco WS-C2950-24, Capabilities: Switch IGMP
Interface: FastEthernet1, Port ID (outgoing port): FastEthernet0/12
Holdtime : 145 sec
Version :
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA8a, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2006 by cisco Systems, Inc.
Compiled Fri 28-Jul-06 15:16 by weiliu
advertisement version: 2
Protocol Hello: OUI=0x00000C, Protocol ID=0x0112; payload len=27, value=00000000FFFFFFFF010221FF0000000000000019E845CE80FF0000
VTP Management Domain: ''
Native VLAN: 1
Duplex: full
'''
r3_show_cdp_neighbors = '''
R3>show cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
SW1 Fas 1 150 S I WS-C2950- Fas 0/13
'''
r3_show_cdp_neighbors_detail = '''
R3>show cdp neighbors detail
-------------------------
Device ID: SW1
Entry address(es):
IP address: 10.1.1.22
Platform: cisco WS-C2950-24, Capabilities: Switch IGMP
Interface: FastEthernet1, Port ID (outgoing port): FastEthernet0/13
Holdtime : 145 sec
Version :
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA8a, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2006 by cisco Systems, Inc.
Compiled Fri 28-Jul-06 15:16 by weiliu
advertisement version: 2
Protocol Hello: OUI=0x00000C, Protocol ID=0x0112; payload len=27, value=00000000FFFFFFFF010221FF0000000000000019E845CE80FF0000
VTP Management Domain: ''
Native VLAN: 1
Duplex: full
'''
r4_show_cdp_neighbors = '''
R4>show cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
SW1 Fas 1 150 S I WS-C2950- Fas 0/14
'''
r4_show_cdp_neighbors_detail = '''
R4>show cdp neighbors detail
-------------------------
Device ID: SW1
Entry address(es):
IP address: 10.1.1.22
Platform: cisco WS-C2950-24, Capabilities: Switch IGMP
Interface: FastEthernet1, Port ID (outgoing port): FastEthernet0/14
Holdtime : 145 sec
Version :
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA8a, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2006 by cisco Systems, Inc.
Compiled Fri 28-Jul-06 15:16 by weiliu
advertisement version: 2
Protocol Hello: OUI=0x00000C, Protocol ID=0x0112; payload len=27, value=00000000FFFFFFFF010221FF0000000000000019E845CE80FF0000
VTP Management Domain: ''
Native VLAN: 1
Duplex: full
'''
r5_show_cdp_neighbors = '''
R5>show cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater
Device ID Local Intrfce Holdtme Capability Platform Port ID
SW1 Fas 1 150 S I WS-C2950- Fas 0/15
'''
r5_show_cdp_neighbors_detail = '''
R5>show cdp neighbors detail
-------------------------
Device ID: SW1
Entry address(es):
IP address: 10.1.1.22
Platform: cisco WS-C2950-24, Capabilities: Switch IGMP
Interface: FastEthernet1, Port ID (outgoing port): FastEthernet0/15
Holdtime : 145 sec
Version :
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA8a, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2006 by cisco Systems, Inc.
Compiled Fri 28-Jul-06 15:16 by weiliu
advertisement version: 2
Protocol Hello: OUI=0x00000C, Protocol ID=0x0112; payload len=27, value=00000000FFFFFFFF010221FF0000000000000019E845CE80FF0000
VTP Management Domain: ''
Native VLAN: 1
Duplex: full
'''
##### End of cdp details #####
##### Start of script #####
import pprint
# Gather all of that into a tuple (could be list, too)
bundled_cdp_details = (
sw1_show_cdp_neighbors_detail,
r1_show_cdp_neighbors_detail,
r2_show_cdp_neighbors_detail,
r3_show_cdp_neighbors_detail,
r4_show_cdp_neighbors_detail,
r5_show_cdp_neighbors_detail,
)
# Create dictionary
network_devices = {}
for cdp_data in bundled_cdp_details:
cdp_data_line = cdp_data.split("\n")
# print cdp_data_line
# print
# Reset hostname for each cdp output
hostname = ''
remote_hostname = ''
# Iterate over each line of the cdp data
for line in cdp_data_line:
# As a precaution set hostname to '' on every device divider
if '----------------' in line:
remote_hostname = ''
# Find local hostname (assumes no abbreviation in command)
if 'show cdp neighbors detail' in line:
local_hostname = line.split("show cdp neighbors detail")[0]
if '>' in local_hostname:
local_hostname = local_hostname.split('>')[0]
elif '#' in local_hostname:
local_hostname = local_hostname.split('#')[0]
else:
sys.exit("Invalid prompt for local hostname - exiting")
# When you find a new device, initialize it as a blank dictionary
if not local_hostname in network_devices:
network_devices[local_hostname] = {}
# Processing hostname
if 'Device ID: ' in line:
(junk, remote_hostname) = line.split('Device ID: ')
remote_hostname = remote_hostname.strip()
# When you find a new device, initialize it as a blank dictionary
if not remote_hostname in network_devices:
network_devices[remote_hostname] = {}
# Map adjacencies
if (local_hostname in network_devices) and remote_hostname:
# Add adjacent_devices field if it doesn't exist
if not 'adjacent_devices' in network_devices[local_hostname]:
network_devices[local_hostname]['adjacent_devices'] = [remote_hostname]
# adjacent_devices is already present, append to it
else:
# Add the remote device (if not already on list)
if not remote_hostname in network_devices[local_hostname]['adjacent_devices']:
network_devices[local_hostname]['adjacent_devices'].append(remote_hostname)
# print hostname
# Processing IP
if 'IP address: ' in line:
(junk, ip) = line.split('IP address: ')
ip = ip.strip()
# print junk
if hostname:
network_devices[hostname]['ip'] = ip
# Process vendor, model, and device_type
if 'Platform: ' in line:
(platform, capabilities) = line.split(',')
# Process vendor and model
(junk, model_vendor) = platform.split("Platform: ")
(vendor, model) = model_vendor.split()
# Process device_type
(junk, capabilities) = capabilities.split("Capabilities: ")
if 'Router' in capabilities:
device_type = 'router'
elif 'Switch' in capabilities:
device_type = 'switch'
else:
device_type = 'unknown'
if hostname:
network_devices[hostname]['vendor'] = vendor
network_devices[hostname]['model'] = model
network_devices[hostname]['device_type'] = device_type
print '\n'
pprint.pprint(network_devices)
print '\n'