7.3.13. Softwire Tunnels¶
7.3.13.1. eth2p-ethip4–ethip6ip4-ip4base–ip6base-swirelw46-func¶
Lightweight 4 over 6 test cases LW4o6 is a subset of MAP-E, with per-subscriber rules. It uses the same tunneling mechanism and configuration as MAP-E. It does not use embedded address bits.
- [Top] Network Topologies: TG=DUT1 2-node topology with two links between nodes.
- [Enc] Packet Encapsulations: Eth-IPv4-UDP on TG_if1-DUT, Eth-IPv6-IPv4-UDP on TG_if2_DUT.
- [Cfg] DUT configuration: DUT1 is configured as lwAFTR.
- [Ver] TG verification: Test UDP ICMP Echo Request in IPv4 are sent to lwAFTR and are verified by TG for correctness their encapsulation in IPv6 src-addr, dst-addr and MAC addresses.
- [Ref] Applicable standard specifications: RFC7596 RFC7597.
| Name | Documentation | Status |
|---|---|---|
| TC01: Encapsulate IPv4 into IPv6. IPv6 dst depends on IPv4 and UDP destination | [Top] TG=DUT1. [Enc] Eth-IPv4-UDP on TG_if1-DUT, Eth-IPv6-IPv4-UDP on TG_if2_DUT. [Cfg] On DUT1 configure Map domain and Map rule. [Ver] Make TG send non-encapsulated UDP to DUT; verify TG received IPv4oIPv6 encapsulated packet is correct. [Ref] RFC7596 RFC7597 |
PASS |
| TC02: Encapsulate IPv4 ICMP into IPv6. IPv6 dst depends on IPv4 addr and ICMP ID | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMP(type 0 and 8) on TG_if1-DUT, Eth-IPv6-IPv4-ICMP on TG_if2_DUT. [Cfg] On DUT1 configure Map domain and Map rule. [Ver] Make TG send non-encapsulated ICMP to DUT; verify TG received IPv4oIPv6 encapsulated packet is correct. Checks IPv6 destination based on ICMP Identifier field. [Ref] RFC7596 section 8.1 |
PASS |
| TC03: Decapsulate IPv4 UDP from IPv6. | [Top] TG=DUT1. [Enc] Eth-IPv6-IPv4-UDP on TG_if2_DUT, Eth-IPv4-UDP on TG_if1-DUT. [Cfg] On DUT1 configure Map domain and Map rule. [Ver] Make TG send encapsulated UDP to DUT; verify TG received IPv4 non-encapsulated packet is correct. [Ref] RFC7596 RFC7597 |
PASS |
| TC04: Hairpinning of traffic between two lwB4 | [Top] DUT1-TG. [Enc] Eth-IPv6-IPv4-UDP on TG_if2_DUT, Eth-IPv6-IPv4-UDP on TG_if2_DUT. [Cfg] On DUT1 configure Map domain and two Map rules. [Ver] Make TG send encapsulated UDP to DUT; verify TG received encapsulated packet is correct. [Ref] RFC7596 RFC7597 |
PASS |
7.3.13.2. eth2p-ethip4–ethip6ip4-ip4base–ip6base-swiremape-func¶
Test for Basic mapping rule for MAP-E
- [Top] Network Topologies: TG - DUT1 - TG with two links between the nodes.
- [Enc] Packet Encapsulations: Eth-IPv4-UDP on TG-to-DUT-if1. Eth-IPv6-IPv4-UDP on TG-to-DUT-if2.
- [Cfg] DUT configuration: DUT is configured with IPv4 on one DUT-to-TG interface and IPv6 address on second DUT-to-TG interface. MAP-E domain is configured in test template based on test parameters.
- [Ver] TG verification: UDP packets in IPv4 are sent by TG to destination in MAP domain. IPv6 packets with encapsulated IPv4 are received on TG interface.
- [Ref] Applicable standard specifications: RFC7597.
| Name | Documentation | Status |
|---|---|---|
| TC01: BMR, then an IPv4 prefix is assigned | Basic Mapping Rule https://tools.ietf.org/html/rfc7597#section-5.2 IPv4 prefix length + ea bits length < 32 (o + r < 32) psid_length = 0, ip6_prefix < 64, ip4_prefix <= 32 Arguments: - ipv4_pfx - ipv6_pfx - ipv6_src - ea_bit_len - psid_offset - psid_len - ipv4_dst - dst_port - expected_ipv6_dst | PASS |
| TC02: BMR, full IPv4 address is to be assigned | Basic Mapping Rule https://tools.ietf.org/html/rfc7597#section-5.2 IPv4 prefix length + ea bits length == 32 (o + r == 32) psid_length = 0, ip6_prefix < 64, ip4_prefix <= 32 Arguments: - ipv4_pfx - ipv6_pfx - ipv6_src - ea_bit_len - psid_offset - psid_len - ipv4_dst - dst_port - expected_ipv6_dst | PASS |
| TC03: BMR, shared IPv4 address is to be assigned | Basic Mapping Rule https://tools.ietf.org/html/rfc7597#section-5.2 IPv4 prefix length + ea bits length > 32 (o + r > 32) ip6_prefix < 64, ip4_prefix <= 32 Arguments: - ipv4_pfx - ipv6_pfx - ipv6_src - ea_bit_len - psid_offset - psid_len - ipv4_dst - dst_port - expected_ipv6_dst | PASS |
| TC04: End user IPv6 prefix is 64 | Supported End-User IPv6 prefix length is 64 bit. Arguments: - ipv4_pfx - ipv6_pfx - ipv6_src - ea_bit_len - psid_offset - psid_len - ipv4_dst - dst_port | PASS |
| TC05: IPv4 prefix is 0 | FAIL | |
| TC06: Multiple domain and check with traffic script IPv4 source IPv6 destination | [Top] TG=DUT1. [Cfg] Multiple MAP-E domains are configured, values from variable file. [Ver] Send IPv4 to destination in configured domain and receive IPv6 packet. [Ref] RFC7597. |
PASS |
| TC07: Multiple domain and check with traffic script IPv6 source IPv6 destination | [Top] TG=DUT1. [Cfg] Multiple MAP-E domains are configured, values from variable file. [Ver] Send IPv4 encapsulated in IPv6. Source and destination are from configured domains. Check if VPP translate IPv6 addresses. [Ref] RFC7597. |
PASS |
| TC08: Encapsulate IPv4 ICMP into IPv6 | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMP(type 0 and 8) on TG_if1-DUT, Eth-IPv6-IPv4-ICMP on TG_if2_DUT. [Cfg] Multiple MAP-E domains are configured, values from variable file. [Ver] Make TG send non-encapsulated ICMP to DUT; verify TG received IPv4oIPv6 encapsulated packet is correct. Checks IPv6 destination based on ICMP Identifier field. [Ref] RFC7597 section 8.2. |
PASS |
| TC09: Repeated ip neighbor command doesnt put FIB to broken state | Original issue described in https://jira.fd.io/browse/VPP-312. [Top] TG=DUT1. [Cfg] IP address are set on interfaces, ip neighbor multiple times [Ver] FIB is not in broken state. The steps are add route, check with traffic then add same route again and check with traffic script. |
PASS |
| Bug: VPP-318 | qlen < psid length | FAIL |
7.3.13.3. eth2p-ethip4–ethip6ip4-ip4base–ip6base-swiremapt-func¶
Test for Basic mapping rule for MAP-T
- [Top] Network Topologies: TG - DUT1 - TG with two links between the nodes.
- [Enc] Packet Encapsulations: Eth-IPv4-UDP on TG-to-DUT-if1. Eth-IPv6-UDP on TG-to-DUT-if2.
- [Cfg] DUT configuration: DUT is configured with IPv4 on one DUT-to-TG interface and IPv6 address on second DUT-to-TG interface. MAP-T domain is configured in test template based on test parameters.
- [Ver] TG verification: UDP packets in IPv4 are sent by TG to destination in MAP domain. IPv6 packets with translated IPv4 addresses are received on TG interface.
- [Ref] Applicable standard specifications: RFC7599
| Name | Documentation | Status |
|---|---|---|
| TC01: MAP-T test | Test to check map-t address translation. Arguments: - ipv4_pfx - ipv6_dst_pfx - ipv6_src_pfx - ea_bit_len - psid_offset - psid_len - ipv4_src - ipv4_dst - dst_port | PASS |