差異處
這裏顯示兩個版本的差異處。
| 下次修改 | 前次修改 | ||
| juniper:junos:routing-instances [2012/11/13 05:31] – 建立 jal | juniper:junos:routing-instances [2012/11/13 15:52] (目前版本) – jal | ||
|---|---|---|---|
| 行 1: | 行 1: | ||
| + | ====== JUNOS routing-instances ====== | ||
| + | 其概念有一點點類似大型 Router 的 logical-routers，不過 routing-instances 沒有像 logical-routers 可以切割的那麼完整，應付小型的分割其實是足夠的。 | ||
| + | ===== instance-type ===== | ||
| + | - forwarding | ||
| + | * Forwarding instance | ||
| + | - l2vpn | ||
| + | * Layer 2 VPN routing instance | ||
| + | - mpls-internet-multicast | ||
| + | * Internet Multicast over MPLS routing instance | ||
| + | - no-forwarding | ||
| + | * Nonforwarding instance | ||
| + | - virtual-router | ||
| + | * Virtual routing instance | ||
| + | - vrf | ||
| + | * Virtual routing forwarding instance | ||
| + | |||
| + | ===== virtual-router ===== | ||
| + | 以下是將二個 vlan interface 獨立成一個 virtual-router instance，並為其建立自己的 routing table. | ||
| + | <code java> | ||
| + | interfaces { | ||
| + | vlan { | ||
| + | unit 3001 { | ||
| + | family inet { | ||
| + | address 10.1.1.2/ | ||
| + | } | ||
| + | family inet6 { | ||
| + | address 2001: | ||
| + | } | ||
| + | } | ||
| + | unit 4001 { | ||
| + | family inet { | ||
| + | address 10.2.1.1/ | ||
| + | } | ||
| + | family inet6 { | ||
| + | address 2001: | ||
| + | } | ||
| + | } | ||
| + | } | ||
| + | } | ||
| + | routing-instances { | ||
| + | v3001_vr { | ||
| + | instance-type virtual-router; | ||
| + | interface vlan.3001; | ||
| + | interface vlan.4001; | ||
| + | routing-options { | ||
| + | rib v3001_vr.inet6.0 { // 特別注意這邊 rib 的名稱，請一定要跟 routing-instances 的名稱相符！！ | ||
| + | static { | ||
| + | route 0::0/0 next-hop 2001: | ||
| + | route 2001: | ||
| + | } | ||
| + | } | ||
| + | static { | ||
| + | route 0.0.0.0/0 next-hop 10.2.1.254; | ||
| + | route 10.38.0.0/ | ||
| + | } | ||
| + | } | ||
| + | } | ||
| + | } | ||
| + | </ | ||
| + | |||
| + | ===== forwarding ===== | ||
| + | 可用來處理類似 Policy Based Route，在 JUNOS 是使用 Firewall 這個 function 來處理判斷的條件，然後再由 routing-instances 中的 forwarding 來進行轉送動作。相關的設定範例請見[[juniper: | ||