Saya memiliki banyak router dan switch Cisco di gedung kami. Pada dasarnya, setiap bangunan memiliki satu router dan satu atau lebih switch. Saya hanya menggunakan dua VLAN untuk setiap bangunan: VLAN1 adalah VLAN data (asli juga) dan VLAN200 adalah VLAN suara. Setiap VLAN switch “terhubung” ke subinterface pada router bangunan masing-masing (802.1q), dan pada setiap switch, port yang terhubung ke subinterface router dikonfigurasikan sebagai port trunk, jadi kami memiliki dua kedekatan VLAN.
Masalahnya adalah, saya perhatikan, switch dengan iOS 12.2, dapat “memilih” antarmuka VLAN yang benar ketika saya mencoba menjangkau (ping) subnet jarak jauh. Semua switch memiliki 192.168.X.0/24
data dan 10.10.X.0 /24
suara, jadi jika saya mencoba melakukan ping 192.168.1.2
, switch menggunakan antarmuka VLAN ( 192.168.20.2
) sebagai antarmuka ping sumbernya, dan jika saya mencoba untuk melakukan ping ke Call Manager ( 10.10.254.1
), switch menggunakan antarmuka VLAN 10.10.248.2
sebagai sumbernya. .
Switch dengan iOS 15 (yang baru), dengan konfigurasi yang sama dan terhubung ke router yang sama (seperti switch dengan IOS 12.2), jangan gunakan antarmuka VLAN yang benar. Mereka selalu menggunakan antarmuka suara VLAN (200 dalam kasus saya), jadi saya harus memilih antarmuka sumber jika saya ingin mengharapkan balasan dari perangkat jarak jauh (tentu saja tergantung pada subnet tujuan jarak jauh). Perilaku aneh karena pada dasarnya saya menggunakan konfigurasi yang sama tetapi di tempat yang berbeda. Switch baru menggunakan templat “dual-ipv4-and-ipv6” dan yang lama (12.2) menggunakan templat “desktop default”. Komputer di balik sakelar tidak memiliki masalah konektivitas karena router merutekan paket ke tujuan yang benar, tetapi mengapa sakelar tidak? Ada ide?
Saya tidak yakin apakah switch saya mendukung perutean, di bawah ini hasil dari perintah "sh sdm prefer":
default Default bias
dual-ipv4-and-ipv6 Support both IPv4 and IPv6
lanbase-routing Supports both IPv4 and IPv6 Static Routing
qos QoS bias
Ini adalah konfigurasi sakelar:
Current configuration : 9403 bytes
!
! Last configuration change at 00:09:28 UTC Mon Jun 27 2011 by admin
! NVRAM config last updated at 23:32:34 UTC Sun Jun 26 2011 by admin
!
version 15.0
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
!
boot-start-marker
boot-end-marker
!
enable secret 5 *Removed*
!
username admin privilege 15 secret 5 *Removed*
no aaa new-model
system mtu routing 1500
!
!
ip domain-name lvdomain.local
ip name-server 192.168.0.43
ip name-server 192.168.0.45
!
mls qos map cos-dscp 0 8 16 24 32 46 48 56
mls qos srr-queue input bandwidth 70 30
mls qos srr-queue input threshold 1 80 90
mls qos srr-queue input priority-queue 2 bandwidth 30
mls qos srr-queue input cos-map queue 1 threshold 2 3
mls qos srr-queue input cos-map queue 1 threshold 3 6 7
mls qos srr-queue input cos-map queue 2 threshold 1 4
mls qos srr-queue input dscp-map queue 1 threshold 2 24
mls qos srr-queue input dscp-map queue 1 threshold 3 48 49 50 51 52 53 54 55
mls qos srr-queue input dscp-map queue 1 threshold 3 56 57 58 59 60 61 62 63
mls qos srr-queue input dscp-map queue 2 threshold 3 32 33 40 41 42 43 44 45
mls qos srr-queue input dscp-map queue 2 threshold 3 46 47
mls qos srr-queue output cos-map queue 1 threshold 3 4 5
mls qos srr-queue output cos-map queue 2 threshold 1 2
mls qos srr-queue output cos-map queue 2 threshold 2 3
mls qos srr-queue output cos-map queue 2 threshold 3 6 7
mls qos srr-queue output cos-map queue 3 threshold 3 0
mls qos srr-queue output cos-map queue 4 threshold 3 1
mls qos srr-queue output dscp-map queue 1 threshold 3 32 33 40 41 42 43 44 45
mls qos srr-queue output dscp-map queue 1 threshold 3 46 47
mls qos srr-queue output dscp-map queue 2 threshold 1 16 17 18 19 20 21 22 23
mls qos srr-queue output dscp-map queue 2 threshold 1 26 27 28 29 30 31 34 35
mls qos srr-queue output dscp-map queue 2 threshold 1 36 37 38 39
mls qos srr-queue output dscp-map queue 2 threshold 2 24
mls qos srr-queue output dscp-map queue 2 threshold 3 48 49 50 51 52 53 54 55
mls qos srr-queue output dscp-map queue 2 threshold 3 56 57 58 59 60 61 62 63
mls qos srr-queue output dscp-map queue 3 threshold 3 0 1 2 3 4 5 6 7
mls qos srr-queue output dscp-map queue 4 threshold 1 8 9 11 13 15
mls qos srr-queue output dscp-map queue 4 threshold 2 10 12 14
mls qos queue-set output 1 threshold 1 100 100 50 200
mls qos queue-set output 1 threshold 2 125 125 100 400
mls qos queue-set output 1 threshold 3 100 100 100 400
mls qos queue-set output 1 threshold 4 60 150 50 200
mls qos queue-set output 1 buffers 15 25 40 20
mls qos
!
crypto pki trustpoint TP-self-signed-3287232768
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-3287232768
revocation-check none
rsakeypair TP-self-signed-3287232768
!
!
crypto pki certificate chain TP-self-signed-3287232768
certificate self-signed 01
*Removed*
quit
spanning-tree mode pvst
spanning-tree extend system-id
!
!
!
!
!
!
!
!
!
vlan internal allocation policy ascending
!
!
class-map match-all AutoQoS-VoIP-RTP-Trust
match ip dscp ef
class-map match-all AutoQoS-VoIP-Control-Trust
match ip dscp cs3 af31
!
policy-map AutoQoS-Police-CiscoPhone
class AutoQoS-VoIP-RTP-Trust
set dscp ef
police 1000000 8000 exceed-action policed-dscp-transmit
class AutoQoS-VoIP-Control-Trust
set dscp cs3
police 1000000 8000 exceed-action policed-dscp-transmit
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/1
description *****IP PHONES and PC*****
switchport voice vlan 200
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos trust
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
!
interface FastEthernet0/2
description *****IP PHONES and PC*****
switchport voice vlan 200
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos trust
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
!
interface FastEthernet0/3
description *****IP PHONES and PC*****
switchport voice vlan 200
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos trust
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
!
interface FastEthernet0/4
description *****IP PHONES and PC*****
switchport voice vlan 200
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos trust
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
!
interface FastEthernet0/5
description *****IP PHONES and PC*****
switchport voice vlan 200
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos trust
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
!
interface FastEthernet0/6
description *****IP PHONES and PC*****
switchport voice vlan 200
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos trust
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
!
interface FastEthernet0/7
description *****IP PHONES and PC*****
switchport voice vlan 200
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos trust
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
!
interface FastEthernet0/8
description *****IP PHONES and PC*****
switchport voice vlan 200
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos trust
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
!
interface FastEthernet0/9
description *****IP PHONES and PC*****
switchport voice vlan 200
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos trust
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
!
interface FastEthernet0/10
description *****IP PHONES and PC*****
switchport voice vlan 200
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos trust
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
!
interface FastEthernet0/11
description *****IP PHONES and PC*****
switchport voice vlan 200
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos trust
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
!
interface FastEthernet0/12
description *****IP PHONES and PC*****
switchport voice vlan 200
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos trust
spanning-tree portfast
service-policy input AutoQoS-Police-CiscoPhone
!
interface GigabitEthernet0/1
description *****Trunk to FRIAS.3580.1941*****
switchport mode trunk
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust cos
auto qos trust
!
interface GigabitEthernet0/2
description *****Trunk to FRIAS.3580.1941*****
switchport mode trunk
srr-queue bandwidth share 1 30 35 5
queue-set 2
priority-queue out
mls qos trust cos
auto qos trust
!
interface Vlan1
description *****3580 Data VLAN 1*****
ip address 192.168.26.2 255.255.255.0
no ip route-cache
!
interface Vlan200
description *****3580 Voice VLAN 200*****
ip address 10.10.253.2 255.255.255.0
no ip route-cache
!
ip http server
ip http authentication local
ip http secure-server
!
!
snmp-server community public RO
!
ipv6 access-list IPv6_In_Traffic_Shutdown
deny ipv6 any any
!
!
line con 0
line vty 0 4
logging synchronous
login local
length 0
line vty 5 15
login
!
end
ip default-gateway
atau ip route 0.0.0.0 0.0.0.0
perintah dalam konfigurasi ini. Jika Anda melakukan ping dari sakelar itu sendiri, ini bisa menjadi masalah.