LLDP(Link Local Discovery Protocal)
LLDP是一種標準協議，功能等同思科的CDP，可以探知相鄰設備的設備訊息(版本、介面、平台、功能)，思科設備可以用CDP來探知其他思科設備，但若要探知其他廠牌的設備，就需要使用LLDP(思科設備跟他牌設備都需要啟用LLDP)
範例如下：
#在Router1及Router2啟用LLDP：
Router1>enable
Router1#
Router1#configure terminal
Router1(config)#
Router1(config)#lldp run
Router1(config)#end
Router1#
Router2>enable
Router2#
Router2#configure terminal
Router2(config)#
Router2(config)#lldp run
Router2(config)#end
Router2#
#用指令show lldp查看lldp是否已經啟用：
Router1#show lldp
Global LLDP Information:
Status: ACTIVE
LLDP advertisements are sent every 30 seconds
LLDP hold time advertised is 120 seconds
LLDP interface reinitialisation delay is 2 seconds
Router2#show lldp
Global LLDP Information:
Status: ACTIVE
LLDP advertisements are sent every 30 seconds
LLDP hold time advertised is 120 seconds
LLDP interface reinitialisation delay is 2 seconds
#查看LLDP資訊：
Router1#show lldp neighbors
Capability codes:
(R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device
(W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other
Device ID Local Intf Hold-time Capability Port ID
Router2 Gig0/0 120 R Gig0/0
Total entries displayed: 1
Router2#show lldp neighbors
Capability codes:
(R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device
(W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other
Device ID Local Intf Hold-time Capability Port ID
Router1 Gig0/0 120 R Gig0/0
Total entries displayed: 1
Router1#show lldp neighbors detail
------------------------------------------------
Chassis id: 0005.5E3E.9101
Port id: Gig0/0
Port Description: GigabitEthernet0/0
System Name: Router2
System Description:
Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version 15.1(4)M4, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Thurs 5-Jan-12 15:41 by pt_team
Time remaining: 90 seconds
System Capabilities: R
Enabled Capabilities: R
Management Addresses - not advertised
Auto Negotiation - supported, enabled
Physical media capabilities:
1000baseT(FD)
1000baseT(HD)
Media Attachment Unit type: 10
Vlan ID: 1
Router2#show lldp neighbors detail
------------------------------------------------
Chassis id: 0005.5E32.5201
Port id: Gig0/0
Port Description: GigabitEthernet0/0
System Name: Router1
System Description:
Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version 15.1(4)M4, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Thurs 5-Jan-12 15:41 by pt_team
Time remaining: 90 seconds
System Capabilities: R
Enabled Capabilities: R
Management Addresses - not advertised
Auto Negotiation - supported, enabled
Physical media capabilities:
1000baseT(FD)
1000baseT(HD)
Media Attachment Unit type: 10
Vlan ID: 1
Total entries displayed: 1
2019年7月25日 星期四
Cisco SDM Template
Cisco SDM Template
思科在Distribution Layer等級的交換器上設計了效能管理樣板(SDM)，目的是用於管理與有效分配記憶體資源
指令show sdm prefer會顯示目前設備使用的SDM樣板以及此樣板分配的資源
指令sdm prefer 可切換設備的SDM樣板到指定的類型
範例如下：
Switch>en
Switch#show sdm prefer //檢視設備目前使用的SDM樣板
The current template is "desktop default" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.
number of unicast mac addresses: 6K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 8K
number of directly-connected IPv4 hosts: 6K
number of indirect IPv4 routes: 2K
number of IPv4 policy based routing aces: 0
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 1K
Switch#config terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#
Switch(config)#
Switch(config)#sdm prefer ? //確認可以使用的SDM樣板
access Access bias
default Default bias
dual-ipv4-and-ipv6 Support both IPv4 and IPv6
routing Unicast bias
vlan Vlan bias
Switch(config)#sdm prefer dual-ipv4-and-ipv6 ? //指定資源傾向性
default Default bias \\無傾向性，沒有特別目的的話，選這個就行了
routing Unicast bias \\routing相關功能分配較多資源
vlan Vlan bias \\vlan相關功能分配較多資源
Switch(config)#sdm prefer dual-ipv4-and-ipv6 default
Changes to the running SDM preferences have been stored, but cannot take effect until the next reload.
Use 'show sdm prefer' to see what SDM preference is currently active.
Switch(config)#end
Switch#
%SYS-5-CONFIG_I: Configured from console by console
Switch#wr
Building configuration...
[OK]
Switch#reload
Proceed with reload? [confirm]
----------等設備重開機完成後----------
Switch>en
Switch#show sdm prefer
The current template is "desktop IPv4 and IPv6 default" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.
number of unicast mac addresses: 2K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 3K
number of directly-connected IPv4 hosts: 2K
number of indirect IPv4 routes: 1K
number of IPv6 multicast groups: 1.125k
number of directly-connected IPv6 addresses: 2K
number of indirect IPv6 unicast routes: 1K
number of IPv4 policy based routing aces: 0
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 1K
number of IPv6 policy based routing aces: 0
number of IPv6 qos aces: 0.625k
number of IPv6 security aces: 0.5K
Switch#
切換為dual-ipv4-and-ipv6 routing：
The current template is "desktop IPv4 and IPv6 routing" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.
number of unicast mac addresses: 1.5K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 2.75K
number of directly-connected IPv4 hosts: 1.5K
number of indirect IPv4 routes: 1.25K
number of IPv6 multicast groups: 1.125k
number of directly-connected IPv6 addresses: 1.5K
number of indirect IPv6 unicast routes: 1.25K
number of IPv4 policy based routing aces: 0.25K
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 0.5K
number of IPv6 policy based routing aces: 0.25K
number of IPv6 qos aces: 0.625k
number of IPv6 security aces: 0.5K
切換為dual-ipv4-and-ipv6 vlan：
The current template is "desktop IPv4 and IPv6 vlan" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.
number of unicast mac addresses: 8K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 0
number of IPv6 multicast groups: 1.125k
number of directly-connected IPv6 addresses: 0
number of indirect IPv6 unicast routes: 0
number of IPv4 policy based routing aces: 0
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 1K
number of IPv6 policy based routing aces: 0
number of IPv6 qos aces: 0.625k
number of IPv6 security aces: 0.5K
思科在Distribution Layer等級的交換器上設計了效能管理樣板(SDM)，目的是用於管理與有效分配記憶體資源
指令show sdm prefer會顯示目前設備使用的SDM樣板以及此樣板分配的資源
指令sdm prefer 可切換設備的SDM樣板到指定的類型
範例如下：
Switch>en
Switch#show sdm prefer //檢視設備目前使用的SDM樣板
The current template is "desktop default" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.
number of unicast mac addresses: 6K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 8K
number of directly-connected IPv4 hosts: 6K
number of indirect IPv4 routes: 2K
number of IPv4 policy based routing aces: 0
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 1K
Switch#config terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#
Switch(config)#
Switch(config)#sdm prefer ? //確認可以使用的SDM樣板
access Access bias
default Default bias
dual-ipv4-and-ipv6 Support both IPv4 and IPv6
routing Unicast bias
vlan Vlan bias
Switch(config)#sdm prefer dual-ipv4-and-ipv6 ? //指定資源傾向性
default Default bias \\無傾向性，沒有特別目的的話，選這個就行了
routing Unicast bias \\routing相關功能分配較多資源
vlan Vlan bias \\vlan相關功能分配較多資源
Switch(config)#sdm prefer dual-ipv4-and-ipv6 default
Changes to the running SDM preferences have been stored, but cannot take effect until the next reload.
Use 'show sdm prefer' to see what SDM preference is currently active.
Switch(config)#end
Switch#
%SYS-5-CONFIG_I: Configured from console by console
Switch#wr
Building configuration...
[OK]
Switch#reload
Proceed with reload? [confirm]
----------等設備重開機完成後----------
Switch>en
Switch#show sdm prefer
The current template is "desktop IPv4 and IPv6 default" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.
number of unicast mac addresses: 2K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 3K
number of directly-connected IPv4 hosts: 2K
number of indirect IPv4 routes: 1K
number of IPv6 multicast groups: 1.125k
number of directly-connected IPv6 addresses: 2K
number of indirect IPv6 unicast routes: 1K
number of IPv4 policy based routing aces: 0
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 1K
number of IPv6 policy based routing aces: 0
number of IPv6 qos aces: 0.625k
number of IPv6 security aces: 0.5K
Switch#
切換為dual-ipv4-and-ipv6 routing：
The current template is "desktop IPv4 and IPv6 routing" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.
number of unicast mac addresses: 1.5K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 2.75K
number of directly-connected IPv4 hosts: 1.5K
number of indirect IPv4 routes: 1.25K
number of IPv6 multicast groups: 1.125k
number of directly-connected IPv6 addresses: 1.5K
number of indirect IPv6 unicast routes: 1.25K
number of IPv4 policy based routing aces: 0.25K
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 0.5K
number of IPv6 policy based routing aces: 0.25K
number of IPv6 qos aces: 0.625k
number of IPv6 security aces: 0.5K
切換為dual-ipv4-and-ipv6 vlan：
The current template is "desktop IPv4 and IPv6 vlan" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.
number of unicast mac addresses: 8K
number of IPv4 IGMP groups + multicast routes: 1K
number of IPv4 unicast routes: 0
number of IPv6 multicast groups: 1.125k
number of directly-connected IPv6 addresses: 0
number of indirect IPv6 unicast routes: 0
number of IPv4 policy based routing aces: 0
number of IPv4/MAC qos aces: 0.5K
number of IPv4/MAC security aces: 1K
number of IPv6 policy based routing aces: 0
number of IPv6 qos aces: 0.625k
number of IPv6 security aces: 0.5K
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